{"title":"pH Buffer and Calibration Solutions","description":null,"products":[{"product_id":"hanna-instruments-7007c-green-coloured-buffer-solution-7-01-ph-value-at-25-c-500-ml-bottle","title":"Hanna Instruments-7007C Green coloured Buffer Solution 7.01 pH Value at 25°C, 500 mL bottle","description":"\u003ch3\u003eHanna Instruments-7007C Green coloured Buffer Solution 7.01 pH Value at 25°C, 500 mL bottle\u003c\/h3\u003e\n\u003cp\u003eThe pH 7.01 buffer in a 500ml bottle is the most commonly used buffer solutions.\u003c\/p\u003e\n\u003cp\u003epH 7.01 is ideal for those requiring an accurate neutral reading, particularly those working in water purification plants, the food industry, aquatics, and Hydroponics, and wherever the pH is expected to be neutral. Latest Hanna portable and bench microprocessor instruments are calibrated with pH 7.01.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH7.01 can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e\n\u003cp\u003epH buffer solutions\u003c\/p\u003e\n\u003cp\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/p\u003e\n\u003cp\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/p\u003e\n\u003cp\u003eReference fill solutions for refillable electrodes\u003c\/p\u003e\n\u003cp\u003eGeneral and specific cleaning solutions for electrodes\u003c\/p\u003e\n\u003cp\u003eSolutions for electrode maintenance and storage\u003c\/p\u003e\n\u003cp\u003eSolutions for sample preparation\u003c\/p\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/p\u003e\n\u003cp\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/p\u003e\n\u003cp\u003eUseful information:\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*Millesimal and Technical Buffer solutions explained\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured for those where accuracy really is vital, Millesimal buffer solutions are produced to a premium quality for customers who require a greater resolution of 0.001 for pH measurements. Accuracy can be guaranteed at +\/- 0.002 @ 25 C.\u003c\/p\u003e\n\u003cp\u003eTo achieve the more accurate results, Millesimal Buffer solutions are available in pH1.000, pH1.679, pH2.000, pH3.000, pH4.010, pH6.000, pH6.862, pH7.010, pH8.000, pH10.010, pH11.000, pH12.000, pH12.450, pH13.000.\u003c\/p\u003e\n\u003cp\u003eFor those requiring a greater spectrum, as well as increased accuracy to readings, Hanna also manufacture a Technical Buffer solution range which share the accuracy of standard buffers, +\/- 0.01 @ 25 C, and feature two extra pH levels, \u003cstrong\u003epH1.00\u003c\/strong\u003e and \u003cstrong\u003epH5.01\u003c\/strong\u003e, along with pH4.01, pH6.86, pH7.01, and pH10.01.\u003c\/p\u003e\n\u003cp\u003eBoth technical and Millesimal buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354392768663,"sku":"HI-7007C","price":31.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-7007c-green-coloured-buffer-solution-7-01-ph-value-at-25-c-500-ml-bottle.jpg?v=1732284315"},{"product_id":"hanna-instruments-50021p-check-solution-20ml-25-sachets","title":"Hanna Instruments-50021P Check Solution, 20mL, 25 sachets","description":"\u003cp\u003eHanna Instruments-50021P is a premium quality calibration check solution used exclusively for the Hanna Instruments-9813-6 portable pH\/EC\/TDS\/Temperature meter. Each sachet has the lot number and expiry date stamped on it and is made of light block foil ensuring freshness each time one is opened.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eThe Hanna Instruments-50021P has 25 single use sachets containing 20 mL of solution that is used to verify the calibration and functionality of the pH electrode.\u003c\/p\u003e\u003cbr\u003e\u003cdiv class=\"row\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-row section 1\" id=\"description\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cbr\u003e\u003cp\u003eHanna Instruments-50021P is a premium quality calibration check solution produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionized water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers. It is specially formulated for use with the Hanna Instruments-9813-6 portable pH\/EC\/TDS\/Temperature meter. It allows the user to check the meter’s calibration status at any time by simply rinsing the probe with water and immersing it in the solution. The meter will indicate the probe’s condition.\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\u003cbr\u003e\u003cdiv class=\"row\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-row section two\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 col-sm-6 add-p-r\"\u003e\n\u003cbr\u003e\u003ch3\u003eConvenience of individual packaging\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eEach sachet marked with lot number and expiry date\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eHanna solutions are specially formulated to have an expiry of 5 years from manufacture for an unopened sachet.\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003ch3\u003eLight block packaging\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003ePrevents any oxidation from UV light that could affect quality\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 col-sm-6 add-p-l\"\u003e\n\u003cbr\u003e\u003ch3\u003eCAL-CHECK™ FEATURE \/ CLEAN \u0026amp; CAL PROCEDURE\u003c\/h3\u003e\n\u003cbr\u003e\u003cp\u003eThe unique Cal-Check™ feature allows the user to check the meter calibration status at any time. Simply follow the procedure outlined below for a quick assessment of the calibration status.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e1) Rinse the probe with water.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e2) Immerse the probe in the Hanna Instruments-50021 check solution.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e3) Press the Check key.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e4) If the meter is calibrated “Probe is OK” message is displayed.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e5) If cleaning is needed “Clean Probe and Calibrate” message is displayed.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e6) Immerse the probe in appropriate cleaning solution (i.e. Hanna Instruments-700661) for 5 minutes, then rinse it with tap water.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e7) Immerse again in the Hanna Instruments-50021 check solution and press the CHECK key. If the message “Probe is OK” is displayed, the meter does not need calibration. If the message “Clean Probe and Calibrate” is displayed then calibration must be performed.\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354393489559,"sku":"HI-50021P","price":49.02,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-50021p_check_solution_20ml_25_sachets_2b7a42e3-cccc-4ab6-8335-ee38df2cd4b4.jpg?v=1624279332"},{"product_id":"hanna-instruments-9828-27-quick-calibration-solution-1gallon","title":"Hanna Instruments-9828-27 Quick calibration solution, 1gallon","description":"Hanna Instruments-9828-27 is a quick calibration solution for use with Hanna’s top of the range portable multi-parameter meters. It provides for a single point of calibration for pH and conductivity and is ideal for field use.\u003cbr\u003e\u003cp\u003edeal for use in Environmental, Wastewater Treatment, Water Analysis, Industrial, and Aquaculture, Hanna Instruments-9828-27 is a quick calibration solution for use with Hanna’s top of the range multi-parameter meters. Using the Quick Cal function found in compatible meters allows for a single point calibration of pH and conductivity, making it ideal for fieldwork.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eEach gallon bottle has the lot number and expiry date stamped on it and has an air tight top with tamper-proof seal to ensure quality.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e*Compatible meters would have been supplied initially with the Quick Cal Solution. Hanna Instruments-9828 series, Hanna Instruments-9829 range, Hanna Instruments-98194, Hanna Instruments-98195\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354406334615,"sku":"HI-9828-27","price":217.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-9828-27_quick_calibration_solution_1gallon_e13f0eed-bf9a-4ec5-aa1a-9d0048bccf74.jpg?v=1624279590"},{"product_id":"hanna-instruments-7010l-ph-10-01-buffer-solution-500-ml-bottle","title":"Hanna Instruments-7010L pH 10.01 Buffer Solution, 500 mL bottle","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements. Available in 230ml, 500ml, 1 litre, and 1 Gallon bottles, plus individually sealed foil sachets containing 20ml of ready-to-use solution.\u003c\/p\u003e\n\u003cp\u003e*For even greater accuracy, scroll down to read Hanna’s Technical and Millesimal Buffer range explained.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-7010L pH 10.01 Buffer Solution (500 ml)\u003c\/h3\u003e\n\u003cp\u003eThe pH 10.01 buffer in a 500ml bottle is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrowse the Hanna complete range of solutions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354406531223,"sku":"HI-7010L","price":31.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-7010l_ph_10.01_buffer_solution_500_ml_bottle_dc8808cb-d57e-4638-9b23-1f63add8264f.jpg?v=1624279594"},{"product_id":"hanna-instruments-7004m-ph-4-01-buffer-solution-230-ml-bottle","title":"Hanna Instruments-7004M pH 4.01 Buffer Solution, 230 mL bottle","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements. Available in 500ml bottles and individually sealed foil sachets containing 20ml of ready-to-use solution.\u003c\/p\u003e\n\u003cp\u003e*For even greater accuracy, scroll down to see Hanna’s Technical and Millesimal Buffer range explained.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-7004M - pH 4.01 buffer solution, 230ml bottle\u003c\/h3\u003e\n\u003cp\u003eThe pH 4.01 buffer is available in a 230ml bottle, one of the most commonly used buffer solutions. It is extremely stable and represents the mid-way point in the acid range of the pH scale - ideal for those requiring an accurate acid reading, particularly those working in water purification plants, the food industry, and wherever the pH is expected to be acidic.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25◦C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH 4.01 - Red\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH 7.01 - Green\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH 10.01 – Violet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354407284887,"sku":"HI-7004M","price":21.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-7004m_ph_4.01_buffer_solution_230_ml_bottle_b2d1db6a-4c3b-46bb-a9b8-33374143bc54.jpg?v=1624279596"},{"product_id":"hanna-instruments-54710-10-combination-kit-ph-4-01-ph-7-01-ph-10-01-hi-70300l","title":"Hanna Instruments-54710-10 Combination Kit pH 4.01, pH 7.01, pH 10.01, Elecrtode Storage Solution","description":"\u003cp\u003e\u003cspan\u003eHanna combi-pack of 500ml solutions for your convenience. 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It provides for a single point of calibration for pH and conductivity and is ideal for field use.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003edeal for use in Environmental, Wastewater Treatment, Water Analysis, Industrial, and Aquaculture, Hanna Instruments-9828-27 is a quick calibration solution for use with Hanna’s top of the range multi-parameter meters. Using the Quick Cal function found in compatible meters allows for a single point calibration of pH and conductivity, making it ideal for fieldwork.\u003c\/p\u003e\n\u003cp\u003eEach gallon bottle has the lot number and expiry date stamped on it and has an air tight top with tamper-proof seal to ensure quality.\u003c\/p\u003e\n\u003cp\u003e*Compatible meters would have been supplied initially with the Quick Cal Solution. Hanna Instruments-9828 series, Hanna Instruments-9829 range, Hanna Instruments-98194, Hanna Instruments-98195.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354409775255,"sku":"HI-9828-25","price":65.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-9828-25_quick_calibration_solution_500ml_f6a3dad3-f666-4d33-bd9b-3b6ab06aa8ce.jpg?v=1624279661"},{"product_id":"hanna-instruments-7007m-ph-7-01-buffer-solution-230ml","title":"Hanna Instruments-7007M pH 7.01 buffer solution 230ml","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements. Available in 500ml bottles and individually sealed foil sachets containing 20ml of ready-to-use solution.\u003c\/p\u003e\n\u003cp\u003e*For even greater accuracy, scroll down to read Hanna’s Technical and Millesimal Buffer range explained.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-7007M pH 7.01 Buffer Solution, 230ml bottle\u003c\/h3\u003e\n\u003cp\u003eThe pH 7.01 buffer in a 230ml bottle is the most commonly used buffer solutions.\u003c\/p\u003e\n\u003cp\u003epH 7.01 is ideal for those requiring an accurate neutral reading, particularly those working in water purification plants, the food industry, aquatics, and Hydroponics, and wherever the pH is expected to be neutral. Latest Hanna portable and bench microprocessor instruments are calibrated with pH 7.01.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH7 can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003cbr\u003e\n\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354417246359,"sku":"HI-7007M","price":30.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-7007m_ph_7.01_buffer_solution_230ml_1_1d23ce8d-ef68-4fe6-8e12-3ffd748db349.jpg?v=1624279789"},{"product_id":"hanna-instruments-7010m-ph-10-01-buffer-solution-230-ml-bottle","title":"Hanna Instruments-7010M pH 10.01 Buffer Solution, 230 ml bottle","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements. Available in 500ml bottles and individually sealed foil sachets containing 20ml of ready-to-use solution.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-7010M pH 10.01 Buffer Solution (230 ml)\u003c\/h3\u003e\n\u003cp\u003eThe pH 10.01 buffer in a 230ml bottle is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354420916375,"sku":"HI-7010M","price":30.78,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-7010m_ph_10.01_buffer_solution_230_ml_bottle_377095bd-dcef-4fa7-a672-56d760c0fcea.jpg?v=1624279886"},{"product_id":"hanna-instruments-7007l-ph-7-01-buffer-solution-500-ml-bottle","title":"Hanna Instruments-7007L pH 7.01 Buffer Solution, 500 mL bottle","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements. Available in 500ml bottles and individually sealed foil sachets containing 20ml of ready-to-use solution.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-7007L pH 7.01 Buffer Solution, 500ml bottle\u003c\/h3\u003e\n\u003cp\u003eThe pH 7.01 buffer in a 500ml bottle is the most commonly used buffer solutions.\u003c\/p\u003e\n\u003cp\u003epH 7.01 is ideal for those requiring an accurate neutral reading, particularly those working in water purification plants, the food industry, aquatics, and Hydroponics, and wherever the pH is expected to be neutral. Latest Hanna portable and bench microprocessor instruments are calibrated with pH 7.01.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH7 can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354426486935,"sku":"HI-7007L","price":31.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi7007l_c5d8ca1e-89dd-4ae3-967c-da4cc3c70cfb.jpg?v=1624279951"},{"product_id":"hanna-instruments-77200p-combination-ph-tds-buffer-kit-1500-ppm-7-01-ph","title":"Hanna Instruments-77200P Combination pH\/TDS Buffer Kit 1500 ppm \u0026 7.01 pH","description":"\u003cp\u003eMaximum accuracy is high on the agenda here at Hanna. So, with this in mind, browse our Total Dissolved Solids (TDS) Calibration Solutions specifically produced for Conductivity meters and electrodes.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHanna conductivity electrodes can be calibrated in just a few minutes, wherever you are working, thanks to our range of TDS solutions in different forms and values. Sachets, for instance, could be very useful out in the field as well as the laboratory.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eEach label shows the product batch number, expiry date, and a conductivity\/temperature correlation table. TDS value is calculated at 25 C.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cstrong\u003eHanna Instruments-77200P TDS Calibration Solutions 1500mg\/L + pH7.01 x 10 of each in sachets\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHanna Instruments-77200P is a pack containing 1500mg\/L (ppm) TDS solution x 10 sachets and pH7.01 x 10 sachets.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTotal Dissolved Solids (TDS) meters are vital to the water industry so accurate readings are essential. Make sure your electrode is giving accurate readings by using Hanna TDS Calibration Solution available in bottles and sachets. TDS Solutions are produced with high quality Potassium Chloride in various concentrations to NIST standards.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eTDS Calibration solution is available in 1382mg\/L, 6.44 g\/L, 12.41 g\/L, 800mg\/L, 1500mg\/L concentrations in 230ml, 500ml bottles or 25 x 20ml sachets.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUsers who require documented accuracy can purchase TDS Solutions complete with a Certificate of Analysis on various codes. Certification can also be supplied on many of the standard purchases on request.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003e\u003cbr\u003e\u003cstrong\u003eAlso see Salinity Calibration Solutions\u003c\/strong\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eFor accurate salinity readings, select Hanna Salinity Calibration Solution available in 500ml or 230ml bottles. Specifically designed for use with meters measuring salt levels in sea water.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354438807703,"sku":"HI-77200P","price":43.61,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/image_12706_9da2f383-0315-4709-a3b9-0856aaf64668.jpg?v=1624280133"},{"product_id":"hanna-instruments-770710p-combination-buffer-kit-10-01-7-01-ph-5-x-5-20ml-sachets","title":"Hanna Instruments-770710P Combination Buffer Kit 10.01 \u0026 7.01 pH  5 x 5 20ml Sachets","description":"\u003cp\u003eA combination pH buffer kit with 5 x 20ml sachets of pH 7.01 and 5 x 20ml sachets of pH 10.01.\u003c\/p\u003e\n\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 1.68, 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements.\u003c\/p\u003e\n\u003cp\u003e*For even greater accuracy, scroll down to read Hanna’s Technical and Millesimal Buffer range explained.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHanna Instruments-770710P – 5 x 5 20ml sachets pH 7.01 \u0026amp; 10.01 buffer solution\u003c\/strong\u003eThe Hanna Instruments-770710P is a combination pH buffer kit with 5 x 20ml sachets of pH 7.01 and 5 x 20ml sachets of pH 10.01.\u003c\/p\u003e\n\u003cp\u003epH 7.01 is ideal for those requiring an accurate neutral reading, particularly those working in water purification plants, the food industry, aquatics, and Hydroponics, and wherever the pH is expected to be neutral. Latest Hanna portable and bench microprocessor instruments are calibrated with pH 7.01.\u003c\/p\u003e\n\u003cp\u003eThe pH 10.01 buffer solution in quick and easy to use 20ml sachets is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline.\u003c\/p\u003e\n\u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits of individual packaging\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrowse the Hanna complete range of solutions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*Millesimal and Technical Buffer solutions explained\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured for those where accuracy really is vital, Millesimal buffer solutions are produced to a premium quality for customers who require a greater resolution of 0.001 for pH measurements. Accuracy can be guaranteed at +\/- 0.002 @ 25 C.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTo achieve the more accurate results, Millesimal Buffer solutions are available in pH1.000, pH1.679, pH2.000, pH3.000, pH4.010, pH6.000, pH6.862, pH7.010, pH8.000, pH10.010, pH11.000, pH12.000, pH12.450, pH13.000.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eFor those requiring a greater spectrum, as well as increased accuracy to readings, Hanna also manufacture a Technical Buffer solution range which share the accuracy of standard buffers, +\/- 0.01 @ 25 C, and feature two extra pH levels, \u003cstrong\u003epH1.00\u003c\/strong\u003e and \u003cstrong\u003epH5.01\u003c\/strong\u003e, along with pH4.01, pH6.86, pH7.01, and pH10.01.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354440249495,"sku":"HI-770710P","price":21.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_73f68f8e-618d-46ee-a6ca-8d1608fac8e7.jpg?v=1728636401"},{"product_id":"hanna-instruments-77400p-ph-combination-buffer-solution-kit-4-01-7-01-5-x-5-20ml-sachets","title":"Hanna Instruments-77400P pH Combination Buffer Solution Kit 4.01 \u0026 7.01 5 x 5 20ml sachets","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements.\u003c\/p\u003e\n\u003cp\u003eAvailable in 230ml, 500ml, 1 litre, and 1 gallon bottles, plus individually sealed foil sachets containing 20ml of ready-to-use solution.\u003c\/p\u003e\n\u003cp\u003e*For even greater accuracy, scroll down to read Hanna’s Technical and Millesimal Buffer range explained.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-77400P combination pH buffer kit with 5 x 20ml sachets of pH 4.01 and 5 x 20ml sachets of pH 7.01\u003c\/h3\u003e\n\u003cp\u003eThe pH 4.01 \u0026amp; 7.01 buffer solutions in quick and easy to use 20ml sachets are the most popular buffers used before analysing samples. Ideal for those requiring an accurate acid or neutral reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be acid or neutral.\u003c\/p\u003e\n\u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBenefits of individual packaging\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuffer solutions should be stored at 25°C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUseful information:\u003c\/h3\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003epH Value@25°C : 4.01 \u0026amp; 7.01\u003cbr\u003eSize: 20 mL\u003cbr\u003ePackage: 10 sachets (5 each)\u003cbr\u003eCertificate of Analysis: No \u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354452045975,"sku":"HI-77400P","price":19.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1_bfbf48e6-ad5c-4009-b689-94d5a1afdd04.jpg?v=1728378662"},{"product_id":"hanna-instruments-54710-11-combination-ph-buffer-solution-kit","title":"Hanna Instruments-54710-11 Combination pH Buffer Solution Kit","description":"\u003cp\u003e\u003cspan\u003eHanna combi-pack of 500ml solutions for convenience. Achieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna ready-made buffer, storage and cleaning solutions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eHanna Instruments-54710-11 combination pH Buffer Solution kit The Hanna Instruments-54710-11 is a pH buffer solution kit containing a 500 mL bottle of the following solutions:\u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epH 4.01 (Hanna Instruments-7004L)\u003c\/li\u003e\n\u003cli\u003epH 7.01 (Hanna Instruments-7007L)\u003c\/li\u003e\n\u003cli\u003epH 10.01 (Hanna Instruments-7010L)\u003c\/li\u003e\n\u003cli\u003eElectrode storage solution (Hanna Instruments-70300L)\u003c\/li\u003e\n\u003cli\u003eElectrode cleaning solution (Hanna Instruments-7061L)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354456797335,"sku":"HI-54710-11","price":128.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/image_12715_ab3c9340-88b8-45e4-8f4a-e04b28ac79dd.jpg?v=1624280503"},{"product_id":"hanna-instruments-70004p-ph-4-01-buffer-sachets-25-x-20-ml-sachets","title":"Hanna Instruments-70004P pH 4.01 Buffer Sachets, 25 x 20 mL sachets","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003e*For even greater accuracy, scroll down to read Hanna’s Technical and Millesimal Buffer range explained.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHanna Instruments-70004P – 25 x 20ml sachets pH 4.01 buffer solution\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe pH 4.01 buffer solution is available in quick and easy to use 20ml sachets, one of the most commonly used buffer solutions. It is extremely stable and represents the mid-way point in the acid range of the pH scale - ideal for those requiring an accurate acid reading, particularly those working in water purification plants, the food industry, and wherever the pH is expected to be acidic.\u003c\/p\u003e\n\u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e\n\u003cp\u003eBenefits of individual packaging\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBrowse the Hanna complete range of solutions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*Millesimal and Technical Buffer solutions explained\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured for those where accuracy really is vital, Millesimal buffer solutions are produced to a premium quality for customers who require a greater resolution of 0.001 for pH measurements. Accuracy can be guaranteed at +\/- 0.002 @ 25 C.\u003c\/p\u003e\n\u003cp\u003eTo achieve the more accurate results, Millesimal Buffer solutions are available in pH1.000, pH1.679, pH2.000, pH3.000, pH4.010, pH6.000, pH6.862, pH7.010, pH8.000, pH10.010, pH11.000, pH12.000, pH12.450, pH13.000.\u003c\/p\u003e\n\u003cp\u003eFor those requiring a greater spectrum, as well as increased accuracy to readings, Hanna also manufacture a Technical Buffer solution range which share the accuracy of standard buffers, +\/- 0.01 @ 25 C, and feature two extra pH levels, \u003cstrong\u003epH1.00\u003c\/strong\u003e and \u003cstrong\u003epH5.01\u003c\/strong\u003e, along with pH4.01, pH6.86, pH7.01, and pH10.01.\u003c\/p\u003e\n\u003cp\u003eBoth technical and Millesimal buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354487042199,"sku":"HI-70004P","price":40.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-4-01-buffer-sachets-25-pieces-of-20ml-each.jpg?v=1783950225"},{"product_id":"hanna-instruments-70010p-ph-10-01-buffer-sachets-25-x-20-ml-sachets","title":"Hanna Instruments-70010P pH 10.01 Buffer Sachets, 25 x 20 mL sachets","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01, Hanna has a certified value calibration solution with an accuracy of +\/- 0.01pH @ 25◦C for all requirements.\u003c\/p\u003e\n\u003cp\u003e*For even greater accuracy, scroll down to read Hanna’s Technical and Millesimal Buffer range explained.\u003c\/p\u003e\n\u003ch3\u003eHanna Instruments-70010P – 25 x 20ml sachets pH 10.01 buffer solution\u003c\/h3\u003e\n\u003cp\u003eThe pH 10.01 buffer solution in quick and easy to use 20ml sachets is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003c\/p\u003e\n\u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e\n\u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003ch3\u003eRemember:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eUseful information:\u003c\/h3\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cp\u003epH 4.01 - Red\u003c\/p\u003e\n\u003cp\u003epH 7.01 - Green\u003c\/p\u003e\n\u003cp\u003epH 10.01 – Violet\u003c\/p\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e*Millesimal and Technical Buffer solutions explained\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned and manufactured for those where accuracy really is vital, Millesimal buffer solutions are produced to a premium quality for customers who require a greater resolution of 0.001 for pH measurements. Accuracy can be guaranteed at +\/- 0.002 @ 25 C.\u003c\/p\u003e\n\u003cp\u003eTo achieve the more accurate results, Millesimal Buffer solutions are available in pH1.000, pH1.679, pH2.000, pH3.000, pH4.010, pH6.000, pH6.862, pH7.010, pH8.000, pH10.010, pH11.000, pH12.000, pH12.450, pH13.000.\u003c\/p\u003e\n\u003cp\u003eFor those requiring a greater spectrum, as well as increased accuracy to readings, Hanna also manufacture a Technical Buffer solution range which share the accuracy of standard buffers, +\/- 0.01 @ 25 C, and feature two extra pH levels, \u003cstrong\u003epH1.00\u003c\/strong\u003e and \u003cstrong\u003epH5.01\u003c\/strong\u003e, along with pH4.01, pH6.86, pH7.01, and pH10.01.\u003c\/p\u003e\n\u003cp\u003eBoth technical and Millesimal buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354487074967,"sku":"HI-70010P","price":44.56,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi70010p_07f6312c-c026-42ad-bf9c-7b43a7869a5b.jpg?v=1624280654"},{"product_id":"de-ionised-water-3-75-l-1","title":"De-ionised water, 3.75 L","description":"\u003cp\u003e\u003cspan\u003eHI-70436 De-ionised water, 3.75 L, for your research needs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354864890007,"sku":"HI-70436","price":33.25,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-deionised_water_d990c089-3a7a-4d95-b346-4559bcb6cded.jpg?v=1624284666"},{"product_id":"hanna-instruments-hi-70007p-ph-7-01-buffer-sachets-25-x-20-ml-sachets","title":"Hanna Instruments HI-70007P PH 7.01 BUFFER SACHETS, 25 X 20 ML SACHETS","description":"\u003cp\u003eThe pH 7.01 buffer solution in quick and easy to use 20ml sachets is one of the most commonly used buffer solutions.\u003cbr\u003e\u003cbr\u003epH 7.01 is ideal for those requiring an accurate neutral reading, particularly those working in water purification plants, the food industry, aquatics, and Hydroponics, and wherever the pH is expected to be neutral. Latest Hanna portable and bench microprocessor instruments are calibrated with pH 7.01.\u003cbr\u003e\u003cbr\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using the Hanna sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e\n\u003cp\u003e20ml Sachets\u003c\/p\u003e\n\u003cp\u003ePack of 25 \u003c\/p\u003e\n\u003cp\u003eSku:HI-70007P\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":43628703514882,"sku":"HI-70007P","price":40.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/ph-7-01-buffer-sachets-25-pieces-of-20ml-each.jpg?v=1679495467"},{"product_id":"hanna-instruments-hi-5068-ph-6-86-technical-buffer-solution-500ml-with-certificate","title":"Hanna Instruments HI-5068 pH 6.86 Technical Buffer Solution, 500ml with certificate","description":"\u003cp\u003e\u003cspan\u003eHI-5068 pH 6.86 Technical Buffer Solution, 500ml with certificate.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv id=\"product-description-short\" class=\"product__description_short\" itemprop=\"description\"\u003e\n\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-features product__features\"\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"13.987\" height=\"10.123\" viewbox=\"0 0 13.987 10.123\"\u003e\u003cg transform=\"translate(-305.142 -213.686)\"\u003e\u003cpath class=\"a\" d=\"M309.809,222a3.892,3.892,0,0,1,.262-.345q3.768-3.778,7.539-7.551a2.462,2.462,0,0,1,.289-.267.763.763,0,0,1,1.017.106.788.788,0,0,1,.043,1.025,2.512,2.512,0,0,1-.188.2l-8.273,8.275a.831.831,0,0,1-1.394-.01q-1.854-1.854-3.707-3.71a.8.8,0,0,1-.182-.915.727.727,0,0,1,.818-.43,1.16,1.16,0,0,1,.535.3c1,.985,1.989,1.983,2.979,2.98A3.938,3.938,0,0,1,309.809,222Z\" transform=\"translate(0)\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eAccuracy: +\/- 0.01pH @ 25◦C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"13.987\" height=\"10.123\" viewbox=\"0 0 13.987 10.123\"\u003e\u003cg transform=\"translate(-305.142 -213.686)\"\u003e\u003cpath class=\"a\" d=\"M309.809,222a3.892,3.892,0,0,1,.262-.345q3.768-3.778,7.539-7.551a2.462,2.462,0,0,1,.289-.267.763.763,0,0,1,1.017.106.788.788,0,0,1,.043,1.025,2.512,2.512,0,0,1-.188.2l-8.273,8.275a.831.831,0,0,1-1.394-.01q-1.854-1.854-3.707-3.71a.8.8,0,0,1-.182-.915.727.727,0,0,1,.818-.43,1.16,1.16,0,0,1,.535.3c1,.985,1.989,1.983,2.979,2.98A3.938,3.938,0,0,1,309.809,222Z\" transform=\"translate(0)\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eCertificate of Analysis\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"13.987\" height=\"10.123\" viewbox=\"0 0 13.987 10.123\"\u003e\u003cg transform=\"translate(-305.142 -213.686)\"\u003e\u003cpath class=\"a\" d=\"M309.809,222a3.892,3.892,0,0,1,.262-.345q3.768-3.778,7.539-7.551a2.462,2.462,0,0,1,.289-.267.763.763,0,0,1,1.017.106.788.788,0,0,1,.043,1.025,2.512,2.512,0,0,1-.188.2l-8.273,8.275a.831.831,0,0,1-1.394-.01q-1.854-1.854-3.707-3.71a.8.8,0,0,1-.182-.915.727.727,0,0,1,.818-.43,1.16,1.16,0,0,1,.535.3c1,.985,1.989,1.983,2.979,2.98A3.938,3.938,0,0,1,309.809,222Z\" transform=\"translate(0)\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e500 ml\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh. Technical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e\n\u003ch3\u003eHI-5068 pH6.86 Technical Buffer Solution, 500ml\u003c\/h3\u003e\n\u003cp\u003eHI-5068 is a premium quality pH 6.86 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e\n\u003cp\u003epH 6.86 is ideal for those requiring an accurate neutral bordering acidic reading, particularly those working in water purification plants, the food industry, the medical industry, aquatics, and Hydroponics, and wherever the pH is expected to be neutral bordering acidic.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003ch3\u003eRemember:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":53625189106037,"sku":"HI-5068","price":34.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-6-86-buffer-solution-500ml-with-certificate.jpg?v=1731622754"},{"product_id":"hanna-instruments-hi-7004l-ph-4-01-buffer-solution-500-ml-bottle","title":"Hanna Instruments HI-7004L pH 4.01 Buffer Solution, 500 mL bottle","description":"\u003cp\u003e\u003cspan\u003eHI-7004L pH 4.01 Buffer Solution, 500 mL bottle\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"product__description_short\" id=\"product-description-short\" itemprop=\"description\"\u003e\n\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. Available in convenient, ready-made pH values 4.01, 6.86, 7.01, 9.28 and 10.01.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-features product__features\"\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003csvg viewbox=\"0 0 13.987 10.123\" height=\"10.123\" width=\"13.987\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cg transform=\"translate(-305.142 -213.686)\"\u003e\u003cpath transform=\"translate(0)\" d=\"M309.809,222a3.892,3.892,0,0,1,.262-.345q3.768-3.778,7.539-7.551a2.462,2.462,0,0,1,.289-.267.763.763,0,0,1,1.017.106.788.788,0,0,1,.043,1.025,2.512,2.512,0,0,1-.188.2l-8.273,8.275a.831.831,0,0,1-1.394-.01q-1.854-1.854-3.707-3.71a.8.8,0,0,1-.182-.915.727.727,0,0,1,.818-.43,1.16,1.16,0,0,1,.535.3c1,.985,1.989,1.983,2.979,2.98A3.938,3.938,0,0,1,309.809,222Z\" class=\"a\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eAccuracy: +\/- 0.01pH @ 25°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003csvg viewbox=\"0 0 13.987 10.123\" height=\"10.123\" width=\"13.987\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"\u003e\u003cg transform=\"translate(-305.142 -213.686)\"\u003e\u003cpath transform=\"translate(0)\" d=\"M309.809,222a3.892,3.892,0,0,1,.262-.345q3.768-3.778,7.539-7.551a2.462,2.462,0,0,1,.289-.267.763.763,0,0,1,1.017.106.788.788,0,0,1,.043,1.025,2.512,2.512,0,0,1-.188.2l-8.273,8.275a.831.831,0,0,1-1.394-.01q-1.854-1.854-3.707-3.71a.8.8,0,0,1-.182-.915.727.727,0,0,1,.818-.43,1.16,1.16,0,0,1,.535.3c1,.985,1.989,1.983,2.979,2.98A3.938,3.938,0,0,1,309.809,222Z\" class=\"a\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003epH\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003ch3\u003eHI-7004L - pH 4.01 buffer solution, 500ml bottle\u003c\/h3\u003e\n\u003cp\u003eThe pH 4.01 buffer is available in a 500ml bottle, one of the most commonly used buffer solutions. It is extremely stable and represents the mid-way point in the acid range of the pH scale - ideal for those requiring an accurate acid reading, particularly those working in water purification plants, the food industry, and wherever the pH is expected to be acidic.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25◦C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time. pH4, along with pH7, can also be used as an emergency storage solution.\u003c\/p\u003e\n\u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. A certificate of analysis is available on request. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e\n\u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003epH buffer solutions\u003c\/li\u003e\n\u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e\n\u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e\n\u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e\n\u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e\n\u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e\n\u003cli\u003eSolutions for sample preparation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e\n\u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e\n\u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eUseful information:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eColour Coding for 1L and 1 gallon bottles:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cul\u003e\n\u003cli\u003epH 4.01 - Red\u003c\/li\u003e\n\u003cli\u003epH 7.01 - Green\u003c\/li\u003e\n\u003cli\u003epH 10.01 – Violet\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll calibration buffers are made to a premium quality, produced in accordance with ISO 3696\/BS3978 standards using high purity salts, deionised water, certified weight-checked balances, and Class A glassware in a temperature controlled environment monitored with certified thermometers.\u003c\/p\u003e\n\u003cp\u003eAll bottles meet with FDA Standards (US Food and Drug Administration).\u003cstrong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e*Millesimal and Technical Buffer solutions explained\u003c\/h3\u003e\n\u003cp\u003eDesigned and manufactured for those where accuracy really is vital, Millesimal buffer solutions are produced to a premium quality for customers who require a greater resolution of 0.001 for pH measurements. Accuracy can be guaranteed at +\/- 0.002 @ 25◦C.\u003c\/p\u003e\n\u003cp\u003eTo achieve the more accurate results, Millesimal Buffer solutions are available in pH1.000, pH1.679, pH2.000, pH3.000, pH4.010, pH6.000, pH6.862, pH7.010, pH8.000, pH10.010, pH11.000, pH12.000, pH12.450, pH13.000.\u003c\/p\u003e\n\u003cp\u003eFor those requiring a greater spectrum, as well as increased accuracy to readings, Hanna also manufacture a Technical Buffer solution range which share the accuracy of standard buffers, +\/- 0.01 @ 25◦C, and feature two extra pH levels,\u003cspan\u003e \u003c\/span\u003e\u003cb\u003epH1.00\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003eand\u003cspan\u003e \u003c\/span\u003e\u003cb\u003epH5.01\u003c\/b\u003e, along with pH4.01, pH6.86, pH7.01, and pH10.01.\u003c\/p\u003e\n\u003cp\u003eBoth technical and Millesimal buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSolutions are available in a variety of sizes:\u003c\/strong\u003e Check whether the solution you require is available in 1 gallon, 500ml, or 230ml bottles, or individual 20ml sachets.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":53625191498101,"sku":"HI-7004L","price":32.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-4-01-buffer-solution.jpg?v=1731622860"},{"product_id":"hanna-instruments-hi-70006p-ph-6-86-buffer-sachets-25-x-20-ml-sachets","title":"Hanna Instruments HI-70006P pH 6.86 Buffer Sachets, 25 x 20 mL sachets","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eAccuracy: +\/- 0.01pH @ 25◦C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\n\u003csvg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"13.987\" height=\"10.123\" viewbox=\"0 0 13.987 10.123\"\u003e\u003cg transform=\"translate(-305.142 -213.686)\"\u003e\u003cpath class=\"a\" d=\"M309.809,222a3.892,3.892,0,0,1,.262-.345q3.768-3.778,7.539-7.551a2.462,2.462,0,0,1,.289-.267.763.763,0,0,1,1.017.106.788.788,0,0,1,.043,1.025,2.512,2.512,0,0,1-.188.2l-8.273,8.275a.831.831,0,0,1-1.394-.01q-1.854-1.854-3.707-3.71a.8.8,0,0,1-.182-.915.727.727,0,0,1,.818-.43,1.16,1.16,0,0,1,.535.3c1,.985,1.989,1.983,2.979,2.98A3.938,3.938,0,0,1,309.809,222Z\" transform=\"translate(0)\"\u003e\u003c\/path\u003e\u003c\/g\u003e\u003c\/svg\u003e\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003e25 x 20 ml\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003cdiv class=\"feature\"\u003e\u003cspan\u003eSku: HI-70006P\u003c\/span\u003e\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57071287370101,"sku":"HI-70006P","price":38.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-6-86-buffer-sachets-25-pieces-f-20ml-each.jpg?v=1776175786"},{"product_id":"hanna-instruments-hi-7004-1l-ph-4-01-buffer-solution-1l-bottle","title":"Hanna Instruments HI-7004\/1L pH 4.01 Buffer Solution, 1L bottle","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. \u003c\/p\u003e\n\u003cp\u003eAccuracy: +\/- 0.01pH @ 25◦C \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e1L Bottle \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSku: \u003cspan\u003eHI-7004\/1L\u003c\/span\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57071381119349,"sku":"HI-7004\/1L","price":39.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-4-01-buffer-solution-1-litre.jpg?v=1776177495"},{"product_id":"hanna-instruments-hi-7007-1l-ph-7-01-buffer-solution-1l-bottle","title":"Hanna Instruments HI-7007\/1L pH 7.01 Buffer Solution, 1L bottle","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAccuracy: +\/- 0.01pH @ 25◦C\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e1L Bottle \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSku: HI-7007\/1L\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57071388852597,"sku":"HI-7007\/1L","price":39.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-7-01-buffer-solution-1-litre.jpg?v=1776177862"},{"product_id":"hanna-instruments-hi-7010-1l-ph-10-01-buffer-solution-1l-bottle","title":"Hanna Instruments HI-7010\/1L pH 10.01 Buffer Solution, 1L bottle","description":"\u003cdiv id=\"product-description-short\" class=\"product__description_short\" itemprop=\"description\"\u003e\n\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna buffer solutions. \u003c\/p\u003e\n\u003cp\u003eThe pH 10.01 buffer in a 1 Litre bottle is the most popular buffer used before analysing basic samples. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline. Hanna Microprocessor pH meters can be calibrated at pH9.18 and pH10.01.\u003c\/p\u003e\n\u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eAccuracy: +\/- 0.01pH @ 25◦C \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e1L Bottle \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSku: HI-7010\/1L \u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57071397962101,"sku":"HI-7010\/1L","price":39.14,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-10-01-buffer-solution-1-litre.jpg?v=1776178297"},{"product_id":"hanna-instruments-hi-4000-47-ph-4-and-7-buffer-with-chloride-background","title":"Hanna Instruments HI-4000-47 pH 4 and 7 Buffer with Chloride Background","description":"\u003cp\u003eHI-4000-47 is a set of pH 4 and pH 7 buffer packets (includes 10 packets of each buffer). These buffer packets contain chloride ions to allow an inner electrode check of the ammonia and carbon dioxide Ion Selective Electrodes.\u003c\/p\u003e\u003cp\u003eBefore assembling an ammonia or carbon dioxide ISE for the first time, or if reactivating after storage, the inner glass assembly should be conditioned and tested as a pH electrode. The pH buffer packets can be added to 50 mL of deionised or distilled water and the sensor assembly carefully immersed in solution. When the mV measurement in each buffer solution is stable and recorded, the mV difference can be calculated.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640061174133,"sku":"HI-4000-47","price":87.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/4-and-7-buffer-with-chloride-background.jpg?v=1791580094"},{"product_id":"hanna-instruments-hi-4001-40-ammonia-filling-solution","title":"Hanna Instruments HI-4001-40 Ammonia Filling Solution","description":"\u003cp\u003eHI-4001-40 is a set of 4 x 30 mL bottles of fill solution made specifically for Hanna’s ammonia gas sensing Ion Selective Electrodes (ISEs).\u003c\/p\u003e\u003cp\u003eThe electrolyte solution should be added to the outer probe body of the HI-4101 ISE before final assembly to ensure optimum performance.\u003c\/p\u003e \u003cp\u003eThe HI-4001-40 fill solution is a chloride ion-containing electrolyte that is required to provide a reference potential for the HI-4101 ammonia gas sensing Ion Selective Electrode (ISE). As ammonia diffuses through the gas permeable membrane, the thin film of electrolyte on the surface of the pH sensing glass undergoes a pH change. The change in pH of the filling solution is proportional to the concentration of ammonia gas in the solution.\u003c\/p\u003e \u003ch3\u003eSafety Data Sheets\u003c\/h3\u003e \u003cp\u003eAccess safety data sheets online here. When using any form of chemical, it is important you download the relevant safety datasheet and make yourself aware of any precautions you should take when handling the chemical. You can access our library of safety datasheets and download a copy by following the link below.\u003c\/p\u003e \u003cp\u003ePlease note that the '-' in HI- products should be removed from all searches to find the correct information.\u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/sds.hannainst.com\/v\/856999\" target=\"_blank\" rel=\"noreferrer noopener\"\u003eclick here\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640061501813,"sku":"HI-4001-40","price":155.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ammonia-filling-solution.jpg?v=1791580110"},{"product_id":"hanna-instruments-hi-4001-45-conditioning-solution-for-ammonia-ise","title":"Hanna Instruments HI-4001-45 Conditioning solution for Ammonia ISE","description":"\u003cp\u003eHI-4001-45 is a 500 mL bottle of conditioning and storage solution made specifically for Hanna’s ammonia gas sensing Ion Selective Electrodes (ISEs).\u003c\/p\u003e\u003ch3\u003eConditioning and storage solution for ISE sensors\u003c\/h3\u003e \u003cp\u003eThe internal glass pH element of the ammonia ISE requires conditioning to ensure the sensing glass remains hydrated.\u003c\/p\u003e \u003cp\u003eThe ammonia ISE (HI-4101) can also remain assembled and stored in the HI-4001-45 solution for short term storage purposes.\u003c\/p\u003e \u003cp\u003eThe conditioning and storage solution is necessary to keep the glass pH sensing element hydrated in order to accurately measure ammonia concentrations. The HI-4001-45 is a 500 mL bottle of conditioning and storage solution that ensures optimum measurement performance from the HI-4101 ammonia ISE.\u003c\/p\u003e \u003ch3\u003eSafety Data Sheets\u003c\/h3\u003e \u003cp\u003eAccess safety data sheets online here. When using any form of chemical, it is important you download the relevant safety datasheet and make yourself aware of any precautions you should take when handling the chemical. You can access our library of safety datasheets and download a copy by following the link below.\u003c\/p\u003e \u003cp\u003ePlease note that the '-' in HI- products should be removed from all searches to find the correct information.\u003c\/p\u003e \u003cp\u003e\u003ca href=\"https:\/\/sds.hannainst.com\/v\/856999\" target=\"_blank\" rel=\"noreferrer noopener\"\u003eclick here\u003c\/a\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640061534581,"sku":"HI-4001-45","price":78.75,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/conditioning-solution-for-ammonia-ise.jpg?v=1791580112"},{"product_id":"hanna-instruments-hi-4004-00-calcium-isa-500ml","title":"Hanna Instruments HI-4004-00 Calcium ISA, 500ml","description":"\u003cp\u003eThe HI-4004-00 is 500ml bottle of ISA for calcium ISEs.\u003c\/p\u003e\u003cp\u003eIonic Strength Adjusters (ISA) are formulated to provide a constant ionic strength in sample and standards alike, thus permitting concentration rather than activity measurements to be made.\u003c\/p\u003e \u003cp\u003eHanna ISA solutions have the lot number and expiry date clearly marked on the label and are air tight with a tamper-proof seal to ensure the quality of the solution.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eRequired for calcium ISE measurements\u003c\/li\u003e \u003cli\u003eAir tight bottle with tamper-proof seal\u003c\/li\u003e \u003cli\u003eClearly marked lot number and expiry date\u003c\/li\u003e \u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640061763957,"sku":"HI-4004-00","price":120.36,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/calcium-isa-500ml.jpg?v=1791580123"},{"product_id":"hanna-instruments-hi-4005-00-carbon-dioxide-isa","title":"Hanna Instruments HI-4005-00 Carbon Dioxide ISA","description":"\u003cp\u003eHanna Ionic strength adjusters (ISA) are formulated to provide constant ionic strength in samples and standards allowing concentration rather than activity measurements to be made. In some cases, ISAs adjust pH and eliminate matrix effects.\u003c\/p\u003e\u003cp\u003eHI-4005-00 is an ionic strength adjuster (ISA) solution for use with carbon dioxide Ion Selective Electrodes (ISEs).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640061895029,"sku":"HI-4005-00","price":117.32,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/carbon-dioxide-isa.jpg?v=1791580129"},{"product_id":"hanna-instruments-hi-4005-40-carbon-dioxide-filling-solution","title":"Hanna Instruments HI-4005-40 Carbon Dioxide Filling Solution","description":"\u003cp\u003eHI-4005-40 is a set of 4 x 30 mL bottles of chloride ion-containing fill solution made specifically for Hanna’s carbon dioxide gas sensing Ion Selective Electrodes (ISEs).\u003c\/p\u003e\u003cp\u003eThe electrolyte solution should be added to the outer probe body of the HI-4105 ISE before final assembly to ensure optimum performance.\u003c\/p\u003e \u003cp\u003e\u003ci\u003eThe way it works\u003c\/i\u003e - As carbon dioxide diffuses through the gas permeable membrane, the thin film of electrolyte on the surface of the pH sensing glass undergoes a pH change. The change in pH of the filling solution is proportional to the concentration of carbon dioxide gas in the solution.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640061993333,"sku":"HI-4005-40","price":137.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/carbon-dioxide-filling-solution.jpg?v=1791580133"},{"product_id":"hanna-instruments-hi-4010-00-tisab-ii-for-fluoride","title":"Hanna Instruments HI-4010-00 TISAB II (for fluoride)","description":"\u003cp\u003eTISAB II (for fluoride).\u003c\/p\u003e\u003ch3\u003eTISAB II for Fluoride ISEs\u003c\/h3\u003e \u003cp\u003e\u003cbr\u003e\u003cbr\u003e The HI-4010-00 is a 500ml bottle of TISAB II for Fluoride ISEs.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640062452085,"sku":"HI-4010-00","price":61.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/tisab-ii-for-fluoride.jpg?v=1791580149"},{"product_id":"hanna-instruments-hi-4010-05-tisab-ii-for-fluoride","title":"Hanna Instruments HI-4010-05 TISAB II (for fluoride)","description":"\u003cp\u003eTISAB II (for fluoride), 1 gallon.\u003c\/p\u003e\u003cp\u003eHI-4010-05 TISAB II is an ionic strength adjuster solution for use with fluoride ion selective electrodes (ISEs). Hanna ISA solutions are formulated to fix the ionic strength of a sample and standards so that they are both constant.\u003c\/p\u003e \u003cp\u003eWith out the addition of ISA, an ion selective electrode would measure ion activity; addition of ISA stabilises the ionic strength and allows measurements as ion concentration. With some ISEs, the ISA solution is also used to adjust the solution’s pH or to remove any potential interference from competing ions present.\u003c\/p\u003e \u003cp\u003eTISAB II is formulated for water sample analysis to provide samples and standards alike with a constant ionic strength. The solution also adjusts the pH background of the solution and complexes with various metal ions, such as aluminium and iron, that form compounds with fluoride. The ability of TISAB II ensures a total fluoride measurement can be achieved.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640062583157,"sku":"HI-4010-05","price":152.47,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/tisab-ii-for-fluoride_c5a092d1-67a9-4f3f-b691-d9ec4730da5c.jpg?v=1791580155"},{"product_id":"hanna-instruments-hi-4010-06-tisab-iii-concentrate-for-fluoride","title":"Hanna Instruments HI-4010-06 TISAB III concentrate (for fluoride)","description":"\u003cp\u003eHI-4010-06 TISAB III is a more concentrated solution of ionic strength adjuster than TISAB II for use with fluoride ion selective electrodes (ISEs). Hanna ISA solutions are formulated to fix the ionic strength of a sample and standards so that they are both constant.\u003c\/p\u003e\u003cp\u003eThe HI-4010-06 is a 500ml bottle of TISAB III Concentrate for Fluoride ISEs.\u003c\/p\u003e \u003cp\u003eWithout the addition of ISA, an Ion Selective Electrode would measure ion activity; addition of ISA stabilises the ionic strength and allows measurements as ion concentration. With some ISEs, the ISA solution is also used to adjust the solution’s pH or to remove any potential interference from competing ions present.\u003c\/p\u003e \u003cp\u003eTISAB III is a concentrated ISA solution formulated for water sample analysis to provide samples and standards alike with a constant ionic strength.\u003c\/p\u003e \u003cp\u003eThe solution also adjusts the pH background of the solution and complexes with various metal ions, such as aluminium and iron, which form compounds with fluoride. The ability of TISAB III ensures a total fluoride measurement can be achieved.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640062615925,"sku":"HI-4010-06","price":98.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/tisab-iii-concentrate-for-fluoride.jpg?v=1791580157"},{"product_id":"hanna-instruments-hi-4012-00-lead-or-sulphate-isa","title":"Hanna Instruments HI-4012-00 Lead or sulphate ISA","description":"\u003cp\u003eISA for lead or sulphate, 500ml.\u003c\/p\u003e\u003cp\u003eHanna Ionic strength adjusters (ISA) are formulated to provide constant ionic strength in samples and standards allowing concentration rather than activity measurements to be made. In some cases, ISAs adjust pH and eliminate matrix effects.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640063009141,"sku":"HI-4012-00","price":105.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/lead-or-sulfate-isa.jpg?v=1791580169"},{"product_id":"hanna-instruments-hi-4013-00-nitrate-ionic-strength-adjuster","title":"Hanna Instruments HI-4013-00 Nitrate Ionic Strength Adjuster","description":"\u003cp\u003eHanna Ionic strength adjusters (ISA) are formulated to provide constant ionic strength in samples and standards allowing concentration rather than activity measurements to be made. In some cases, ISAs adjust pH and eliminate matrix effects.\u003c\/p\u003e\u003cp\u003eIonic Strength Adjusters (ISA) are formulated to provide a constant ionic strength in sample and standards alike, thus permitting concentration rather than activity measurements to be made.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640063238517,"sku":"HI-4013-00","price":100.98,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/nitrate-isa.jpg?v=1791580174"},{"product_id":"hanna-instruments-hi-4014-00-potassium-isa","title":"Hanna Instruments HI-4014-00 Potassium ISA","description":"\u003cp\u003eHanna Ionic strength adjusters (ISA) are formulated to provide constant ionic strength in samples and standards allowing concentration rather than activity measurements to be made. In some cases, ISAs adjust pH and eliminate matrix effects.\u003c\/p\u003e\u003ch3\u003eISA for Potassium ISE's\u003c\/h3\u003e \u003cp\u003e\u003cbr\u003e\u003cbr\u003e The HI-4014-00 is a 500 ml bottle of ISA for potassium ISE's.\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640063467893,"sku":"HI-4014-00","price":124.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/potassium-isa.jpg?v=1791580185"},{"product_id":"hanna-instruments-hi-4015-00-saob-sulphide-antioxidant-buffer","title":"Hanna Instruments HI-4015-00 SAOB (sulphide antioxidant buffer)","description":"\u003cp\u003eHI-4015-00 is a buffer solution for use with Silver\/Sulphide Ion Selective Electrodes. Comprising two components: one 500 mL bottle of SAOB Reagent A and one 18g bottle of SAOB Reagent B.\u003c\/p\u003e\u003cp\u003eHanna ISA solutions are formulated to fix the ionic strength of a sample and standards. Without addition of ISA, an Ion Selective Electrode measures ion activity. Addition of ISA stabilises the ionic strength and permits measurements as ion concentration. With some ISEs, the ISA solution is also used to adjust the solution’s pH or to remove any potential interference from competing ions present.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640063598965,"sku":"HI-4015-00","price":76.76,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/saob-sulfide-antioxidant-buffer.jpg?v=1791580190"},{"product_id":"hanna-instruments-hi-50001-02-1-00-ph-technical-buffer-solution-0-01-ph-25-x-20ml-sachets","title":"Hanna Instruments HI-50001-02 1.00 pH Technical Buffer Solution (±0.01 pH), 25 x 20ml sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers, +\/- 0.01 @ 25◦C, and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eHI-50001-02 is a premium quality pH 1.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis. The buffer is ideal for users expecting a highly-acidic reading.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003ch3\u003eRemember:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eRange from pH1.00 through to pH13.00, effectively covering every point on the pH scale.\u003c\/p\u003e \u003cp\u003eTechnical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH 7.01 and 10.01.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e1.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-50001-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e20ml x 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640064844149,"sku":"HI-50001-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1-00-ph-technical-buffer-solution-0-01-ph.jpg?v=1791580218"},{"product_id":"hanna-instruments-hi-50002-02-ph-2-00-technical-buffer-solution-25-x-20ml-sachets","title":"Hanna Instruments HI-50002-02 pH 2.00 Technical Buffer Solution, 25 x 20ml sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003ch3\u003eHI-50002-02 pH2.00 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50002-02 is a premium quality pH 2.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis. The buffer is ideal for users expecting a highly-acidic reading.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640064876917,"sku":"HI-50002-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-2-00-solution-supplied-in-25-x-20ml-sachets-solution-plus-cer.jpg?v=1791580220"},{"product_id":"hanna-instruments-hi-50003-02-ph-3-00-technical-buffer-solution-0-01-ph-25-x-20ml-sachets","title":"Hanna Instruments HI-50003-02 pH 3.00 Technical Buffer Solution (±0.01 pH), 25 x 20ml sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50003-02 pH3.00 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50003-02 is a premium quality pH 3.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis. The buffer is ideal for users expecting an acidic reading.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003eBox of 25 Sachets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e25 x 20ml sachets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640064909685,"sku":"HI-50003-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-3-00-technical-buffer-solution-0-01-ph.jpg?v=1791580222"},{"product_id":"hanna-instruments-hi-50004-02-ph-4-01-technical-buffer-solution-25-x-20ml-sachets-0-01-ph-cert","title":"Hanna Instruments HI-50004-02 pH 4.01 Technical Buffer Solution, 25 x 20ml Sachets  + \/ - 0.01 pH \u0026 cert","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50004-02 pH4.01 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50004-02 is a premium quality pH 4.01 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eOne of the most commonly used buffer solutions, it is extremely stable and represents the mid-way point in the acid range of the pH scale - ideal for those requiring an accurate acid reading, particularly those working in water purification plants, the food industry, and wherever the pH is expected to be acidic.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003ch3\u003eRemember:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e4.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-50004-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e20ml x 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640064942453,"sku":"HI-50004-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-4-00-25-x-20ml-sachets-0-01-ph-cert.jpg?v=1791580224"},{"product_id":"hanna-instruments-hi-50005-02-ph-5-00-technical-buffer-solution-25-x-20-ml-sachets","title":"Hanna Instruments HI-50005-02 pH 5.00 Technical Buffer Solution, 25 x 20 mL sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale. Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50005-02 pH5.00 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50005-02 is a premium quality pH 5.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eIdeal for those requiring an accurate acid reading, particularly those working in water purification plants, the food and drinks industry, and wherever the pH is expected to be acidic.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25°C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003ch3\u003eRemember:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e5.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-50005-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e20ml x 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640064975221,"sku":"HI-50005-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/5-00-ph-value-at25-c-25-20-ml-sachets.jpg?v=1791580226"},{"product_id":"hanna-instruments-hi-50007-02-ph-7-01-technical-buffer-solution-25-x-20ml-sachets-0-01-ph-cert","title":"Hanna Instruments HI-50007-02 pH 7.01 Technical Buffer Solution, 25 x 20ml Sachets  + \/ - 0.01 pH \u0026 cert","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale.\u003c\/p\u003e \u003cp\u003eTechnical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50007-02 pH 7.01 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50007-02 is a premium quality pH 7.01 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003epH 7.01 is ideal for those requiring an accurate neutral reading, particularly those working in water purification plants, the food industry, the medical industry, aquatics, and Hydroponics, and wherever the pH is expected to be neutral.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003ch3\u003eRemember:\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e7.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-50007-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e20ml x 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640065007989,"sku":"HI-50007-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-7-00-25-x-20ml-sachets-0-01-ph-cert.jpg?v=1791580227"},{"product_id":"hanna-instruments-hi-50009-02-ph-9-00-technical-buffer-solution-0-01-ph-25-x-20ml-sachets","title":"Hanna Instruments HI-50009-02 pH 9.00 Technical Buffer Solution (±0.01 pH), 25 x 20ml sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50009-02 pH9.00 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50009-02 is a premium quality pH 9.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eThe pH 9.00 buffer is ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, the medical industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. 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The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eRange from pH1.00 through to pH13.00, effectively covering every point on the pH scale.\u003c\/p\u003e \u003ch3\u003eHI-5001 pH1.00 Technical Buffer Solution, 500ml\u003c\/h3\u003e \u003cp\u003eHI-5001 is a premium quality pH 1.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis. The buffer is ideal for users expecting a highly-acidic reading.\u003c\/p\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e1.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-5001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e500ml\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640065073525,"sku":"HI-5001","price":31.73,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/1-00-ph-technical-buffer-solution-0-01-ph_9aed9d5d-0b15-4963-b7f1-280335ca52d5.jpg?v=1791580230"},{"product_id":"hanna-instruments-hi-50010-02-ph-10-00-technical-buffer-25-x-20ml-sachets-0-01-ph-cert","title":"Hanna Instruments HI-50010-02 pH 10.00 Technical Buffer, 25 x 20ml Sachets  + \/ - 0.01 pH \u0026 cert","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50010-02 pH10.01 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50010-02 is a premium quality pH 10.01 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eThe pH 10.01 buffer is ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, the medical industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. 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A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640065106293,"sku":"HI-50010-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/ph-10-00-25-x-20ml-sachets-0-01-ph-cert.jpg?v=1791580232"},{"product_id":"hanna-instruments-hi-50011-02-ph-11-00-technical-buffer-solution-25-x-20-ml-sachets","title":"Hanna Instruments HI-50011-02 pH 11.00 Technical Buffer Solution, 25 x 20 mL sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50011-02 pH11.00 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50011-02 is a premium quality pH 11.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eThe pH 11.00 buffer is ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, the medical industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. 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A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e11.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-50011-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e20ml x 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640065139061,"sku":"HI-50011-02","price":71.82,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/11-00-ph-value-at25-c-25-20-ml-sachets.jpg?v=1791580234"},{"product_id":"hanna-instruments-hi-50012-02-ph-12-00-technical-buffer-solution-0-01-ph-25-x-20ml-sachets","title":"Hanna Instruments HI-50012-02 pH 12.00 Technical Buffer Solution (±0.01 pH), 25 x 20ml sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50012-02 pH12.00 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50012-02 is a premium quality pH 12.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eThe pH 12.00 buffer is ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, the medical industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. 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A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e12.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-50012-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e20ml x 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640065171829,"sku":"HI-50012-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/12-00-ph-technical-buffer-solution-0-01-ph.jpg?v=1791580235"},{"product_id":"hanna-instruments-hi-50013-02-ph-13-00-technical-buffer-solution-0-01-ph-25-x-20ml-sachets","title":"Hanna Instruments HI-50013-02 pH 13.00 Technical Buffer Solution (±0.01 pH), 25 x 20ml sachets","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. The sachet single dose is safe, easy to carry and remains fresh.\u003c\/p\u003e \u003cp\u003eTechnical buffer solutions come with a certificate of analysis on purchase.\u003c\/p\u003e \u003cp\u003e*One Gallon, colour-coded bottles are available in pH 4.01, pH7.01 and 10.01.\u003c\/p\u003e \u003ch3\u003eHI-50013-02 pH13.00 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50013-02 is a premium quality pH 13.00 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eThe pH 13.00 buffer is ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, the food industry, the medical industry, aquatics, and Hydroponics, and in any environments where the pH is expected to be alkaline.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. All bottled solutions are sealed with an air tight, tamper-proof seal to prevent any Carbon Dioxide from entering and causing a change in the pH buffer value.\u003c\/p\u003e \u003ch3\u003eBrowse the Hanna complete range of solutions\u003c\/h3\u003e \u003cul\u003e \u003cli\u003epH buffer solutions\u003c\/li\u003e \u003cli\u003eStandard solutions for conductivity, Total Dissolved Solids (TDS), turbidity, salinity and Ion-Selective Electrode (ISE) calibration\u003c\/li\u003e \u003cli\u003eOxidation Reduction Potential (ORP) test and pre-treatment solutions\u003c\/li\u003e \u003cli\u003eReference fill solutions for refillable electrodes\u003c\/li\u003e \u003cli\u003eGeneral and specific cleaning solutions for electrodes\u003c\/li\u003e \u003cli\u003eSolutions for electrode maintenance and storage\u003c\/li\u003e \u003cli\u003eSolutions for sample preparation\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSolutions are available in many sizes ranging from 20ml sachets for small users to 3.78L (1 gallon) containers for large quantity usage in laboratories.\u003c\/p\u003e \u003cp\u003eFor safety and traceability, all Hanna solutions are provided with a label showing the batch number and expiry date. A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003epH value at 25°C\u003c\/td\u003e\n\u003ctd\u003e13.00\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCode\u003c\/td\u003e\n\u003ctd\u003eHI-50013-02\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003e20ml x 25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertificate of Analysis\u003c\/td\u003e\n\u003ctd\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640065204597,"sku":"HI-50013-02","price":51.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/13-00-ph-technical-buffer-solution-0-01-ph.jpg?v=1791580237"},{"product_id":"hanna-instruments-hi-50016-02-ph-1-68-technical-buffer-solution-25-x-20ml-sachets-certificate","title":"Hanna Instruments HI-50016-02 pH 1.68 Technical Buffer Solution, 25 x 20ml sachets \u0026 certificate","description":"\u003cp\u003eDesigned and manufactured for those requiring a greater spectrum, as well as increased accuracy to readings, Hanna manufactures a Technical Buffer solution range that shares the accuracy of standard buffers and features 20 pH levels.\u003c\/p\u003e\u003ch3\u003eHI-50016-02 pH1.68 Technical Buffer Solution, 25 x 20ml sachets\u003c\/h3\u003e \u003cp\u003eHI-50016-02 is a premium quality pH 1.68 Technical buffer solution, National Institute of Standards and Technology (NIST) traceable and supplied with a Certificate of Analysis. The buffer is ideal for users expecting a highly-acidic reading.\u003c\/p\u003e \u003cp\u003eThe single dose sachets are really handy with each sealed sachet holding just the right amount of solution. Each time a meter or electrode is calibrated using a Hanna sachet, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003ch3\u003eBenefits of individual packaging\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eIdeal for users who do not calibrate frequently\u003c\/li\u003e \u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e \u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e \u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eBuffer solutions should be stored at 25 C, away from direct sunlight for accurate readings.\u003c\/p\u003e \u003cp\u003eTo correctly maintain your meter\/electrode, we highly recommend use of a Hanna cleaning solution, as well as a buffer, for maximum performance every time.\u003c\/p\u003e \u003cp\u003eHanna buffer solutions are prepared, ready-to-use, according to precise formulas and standardised in accordance with the National Institute of Standards and Technology (NIST) to ensure quality and accuracy. All solutions show a batch number, an expiry date, and the correlation table between pH and temperature. 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A certificate of analysis is available on request in line with NIST standards.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration only counts when using fresh solutions and properly cleaned electrodes every time.\u003c\/li\u003e \u003cli\u003eRoutine maintenance will ensure accurate readings while extending the life of the electrode.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eFrom pH1.00 through to pH13.00, effectively covering every point on the pH scale, Technical Buffer Solutions are available in 500ml, 1 litre, 1 Gallon*, and handy 20ml sachets in packs of 10 or 25 for on-site or field use. 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