{"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","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-hi-50004-02-ph-4-01-technical-buffer-solution-25-x-20ml-sachets-0-01-ph-cert","provider":"Test All Water","version":"1.0","type":"link"}