{"title":"Cleaning and Calibration Solutions","description":null,"products":[{"product_id":"hanna-instruments-7061-023-groline-general-purpose-cleaning-solution-230-ml","title":"Hanna Instruments-7061-023 GroLine General Purpose Cleaning Solution, 230 mL","description":"\u003cp\u003eHanna Instruments-7061-023 is a 230mL bottle of GroLine general purpose cleaning solution that can be used for a variety of applications.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHanna's cleaning solutions eliminate impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Hanna suggests cleaning the bulb and junction of your electrode on a regular basis to ensure that the probe is always clean and to prevent any clogging of the junction.\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\u003ch3\u003eHanna Instruments-7061-023 GroLine General Purpose Cleaning Solution, 230 mL\u003c\/h3\u003e\n\u003cbr\u003e\u003cp\u003eElectrodes can become dirty from use and will produce inaccurate results even if they read correctly in a pH buffer.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003eThe most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, the instrument assumes that the electrode is clean and that the standardisation curve created during the calibration process will remain a valid reference until the next calibration. pH meters on the market today will allow an offset voltage of approximately ±60 mV. The deviation from 0 mV is not unusual but ideally should be no greater than ±30 mV. The calibration process compensates for the change in offset voltage. If the mV offset continues to deviate and the meter is calibrated with a dirty electrode then inaccurate readings will result.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003eCleaning is a fast and effective routine that should be performed on a regular basis as a preventative measure against using a dirty electrode and to ensure that the junction is not clogged. By simply immersing the electrode in the Hanna Instruments-7061-023 cleaning solution for 15 to 20 minutes will dissolve any mineral deposits or other coatings.\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 four\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003cbr\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eSpecially formulated for cleaning electrodes\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eAir tight bottle with tamper-proof seal to ensure the quality and freshness of solution\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eEach bottle is marked with a lot number and expiry date.\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\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":40354395652247,"sku":"HI-7061-023","price":19.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-7061-023_groline_general_purpose_cleaning_solution_230_ml_9c90be53-bdbc-4420-ba7c-60b31c9ded3c.jpg?v=1624279436"},{"product_id":"hanna-instruments-7061-050-groline-cleaning-solution-500ml","title":"Hanna Instruments-7061-050 Groline Cleaning Solution, 500ml","description":"\u003cp\u003eHanna Instruments-7061-050 is a 500mL bottle of GroLine general purpose cleaning solution that can be used for a variety of applications.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eHanna's cleaning solutions eliminate impurities and residues that are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly. Hanna suggests cleaning the bulb and junction of your electrode on a regular basis to ensure that the probe is always clean and to prevent any clogging of the junction.\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\u003ch3\u003eHanna Instruments-7061-050 GroLine General Purpose Cleaning Solution, 500 mL\u003c\/h3\u003e\n\u003cbr\u003e\u003cp\u003eElectrodes can become dirty from use and will produce inaccurate results even if they read correctly in a pH buffer.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003eThe most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, the instrument assumes that the electrode is clean and that the standardisation curve created during the calibration process will remain a valid reference until the next calibration. pH meters on the market today will allow an offset voltage of approximately ±60 mV. The deviation from 0 mV is not unusual but ideally should be no greater than ±30 mV. The calibration process compensates for the change in offset voltage. If the mV offset continues to deviate and the meter is calibrated with a dirty electrode then inaccurate readings will result.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003eCleaning is a fast and effective routine that should be performed on a regular basis as a preventative measure against using a dirty electrode and to ensure that the junction is not clogged. By simply immersing the electrode in the Hanna Instruments-7061-050 cleaning solution for 15 to 20 minutes will dissolve any mineral deposits or other coatings.\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 four\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eSpecially formulated for cleaning electrodes\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eAir tight bottle with tamper-proof seal to ensure the quality and freshness of solution\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eEach bottle is marked with a lot number and expiry date.\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\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 nine\"\u003e\n\u003cbr\u003e\u003cdiv class=\"col-xs-12 col-sm-6 rem-pad-mobile rem-p-l\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-image col-xs-5 col-sm-3 circle-left\"\u003e\u003cimg alt=\"\" class=\"img-responsive\" src=\"https:\/\/www.hannainstruments.co.uk\/media\/catalog\/product\/HI50036P_default_2.jpg\" title=\"\"\u003e\u003c\/div\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-7 col-sm-9\"\u003e\n\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cp\u003eHanna recommends using Hanna Instruments-50036p Groline Quick Cal Solution alongside this product.\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\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":40354397880471,"sku":"HI-7061-050","price":17.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-7061-050_groline_cleaning_solution_500ml_a86cbbf4-90f8-4b37-8eaa-d7ff8783f957.jpg?v=1624279487"},{"product_id":"hanna-instruments-70300-023-groline-electrode-storage-solution-230-ml","title":"Hanna Instruments-70300-023 GroLine Electrode Storage Solution, 230 mL","description":"Hanna Instruments-70300-023 is a 230mL bottle of GroLine storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes.\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\u003eIt is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH electrode hydrated. Ideally a storage solution should be used; never store an electrode in distilled or deionised water. The Hanna Instruments storage solution is specifically formulated to minimise microbial growth and to prevent any diffusion\/osmotic effects from storing a probe in a solution with the highly concentrated inner reference electrolyte. Storing your pH and\/or ORP electrodes in a storage solution will also keep the junction clear.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003eMaintaining the hydrated layer and clear junction will help to ensure a fast and reliable measurement. In the case of cleaning your pH electrode in one of our cleaning solutions, we recommend soaking the electrode in the HI7061-023 GroLine storage solution for at least one hour before taking measurements.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e* Never store pH or ORP electrodes in distilled or deionised water. Doing so will shorten the life of the sensor.\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 four\"\u003e\n\u003cbr\u003e\u003cdiv class=\"section-text col-xs-12 col-sm-7 add-p-r rem-p-l\"\u003e\n\u003cbr\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cbr\u003e\u003cul\u003e\n\u003cbr\u003e\u003cli\u003eSpecial formulation to minimise microbial growth and osmotic\/diffusion effects between the solution and inner reference electrolyte\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eManufactured specifically for pH and ORP electrodes\u003c\/li\u003e\n\u003cbr\u003e\u003cli\u003eAir tight bottle with tamper-proof seal to ensure the quality and freshness of solution\u003c\/li\u003e\n\u003cbr\u003e\n\u003c\/ul\u003e\n\u003cbr\u003e\u003cp\u003eEach bottle marked with lot number and expiry date and specially formulated to have an expiry of 5 years from manufacture for an unopened bottle.\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":40354405679255,"sku":"HI-70300-023","price":19.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-70300-023_groline_electrode_storage_solution_230_ml_d24dd6f9-87bb-476c-a120-72ccc26a47e5.jpg?v=1624279566"},{"product_id":"hanna-instruments-7051l-soil-sample-preparation-solution-500ml","title":"Hanna Instruments-7051L Soil Sample Preparation Solution, 500ml","description":"\u003cform action=\"https:\/\/www.hannainstruments.co.uk\/checkout\/cart\/add\/uenc\/aHR0cHM6Ly93d3cuaGFubmFpbnN0cnVtZW50cy5jby51ay9zb2lsLXNhbXBsZS1wcmVwYXJhdGlvbi1zb2x1dGlvbi04ODQuaHRtbA,,\/product\/681\/form_key\/5s7JOOpWYYUT5xMp\/\" id=\"product_addtocart_form\" method=\"post\"\u003e\n\u003cbr\u003e\u003cdiv class=\"product-view__product-essential__product-shop col-sm-5 col-xs-12 rem-pad-mobile rem-p-r\"\u003e\n\u003cbr\u003e\u003cdiv class=\"product-view__product-essential__product-shop__short-description\"\u003e\n\u003cbr\u003e\u003cdiv class=\"std\"\u003e\n\u003cbr\u003e\u003cp\u003eThe Hanna Instruments-7051L is a 500 mL bottle of soil sample preparation solution. This sample preparation solution is used to prep samples for testing.\u003c\/p\u003e\n\u003cbr\u003e\u003cp\u003e\u003c\/p\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/form\u003e\u003cbr\u003e\u003cp\u003eHanna Instruments-7051 Soil Sample Preparation Solution is an electrolyte solution used in the measurement of soil pH. The pH of soil is most commonly measured as either a water slurry or electrolyte slurry, where a set ratio of soil:solvent (solvent is water or electrolyte solution is chosen; common ratios used for soil pH are 1:1 1:2 or 1:5, where more solvent than soil is used when soils-to-be-analysed contain high amount so organic matter or clay. Use of an electrolyte solution is usually preferred as it is less affected by soil electrolyte concentration and provides a more consistent measurement for soils whose salt content may fluctuate as a result of seasonal conditions or crop residues.\u003c\/p\u003e\u003cbr\u003e\u003cp\u003eUsing the Hanna Instruments-7051 solution prior to taking a measurement provides for a more accurate pH reading of soil samples.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":40354440183959,"sku":"HI-7051L","price":28.79,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/products\/hi-7051l_soil_sample_preparation_solution_500ml_ec5d0063-4f26-41d9-a305-a724d5fd1714.jpg?v=1624280177"},{"product_id":"hann-instruments-hi-700661p-electrode-cleaning-solution-for-agricultural-applications","title":"Hann Instruments HI-700661P Electrode cleaning Solution for Agricultural applications","description":"\u003ch3\u003eHI-700661P General Purpose Cleaning Solution for Agriculture (25 x 20 mL Sachets)\u003c\/h3\u003e\n\u003cp\u003eHI-700661P is a highly-effective cleaning solution available in easy-to-use 20ml sachets, specially formulated for pH electrodes used in agriculture.\u003c\/p\u003e\n\u003cp\u003eElectrodes become dirty from use and will produce inaccurate results even if they read correctly in a pH buffer. HANNA’s cleaning solutions eliminate impurities and residues which are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly.\u003c\/p\u003e\n\u003cp\u003eAt HANNA, we suggest cleaning the bulb and junction of your electrode on a regular basis in our ready-to-use cleaning solutions to ensure that the probe is always clean and to prevent any clogging of the junction.\u003c\/p\u003e\n\u003cp\u003eAll cleaning solutions are packaged in an air tight bottle with tamper-proof seal to ensure quality and freshness. All solutions show a batch number and expiry date.\u003c\/p\u003e\n\u003cp\u003eAvailable in 230ml and 500ml bottles, and individual 20ml sachets in packs of 25.\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 cleaned using the HANNA sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e\n\u003ch3\u003eUseful tips:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAfter cleaning, rinse the electrode in tap water and then place in a HANNA Storage Solution before calibrating or taking measurements.\u003c\/li\u003e\n\u003cli\u003eAlways follow up with a HANNA Buffer\/calibrating Solution for the best results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eWhich cleaning solution to use . . .?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGeneral Cleaning\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSoak in HANNA General Cleaning Solution (HI-7061) for between 30 minutes and 1-and-a-half hours to dissolve mineral deposits and other general coatings. (Non-aggressive formula).\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProtein Coating\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSoak in HANNA Protein Cleaning Solution (HI-7073) for 15 minutes to enzymatically dissolve deposits from protein sources.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInorganic Soak\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSoak in HANNA Inorganic Cleaning Solution (HI-7074) for 5 to 15 minutes. This cleaner is especially effective at removal of precipitates caused by possible reactions - Usually used in industrial applications.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOil and Grease Rinse\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eOil and grease removal require the correct chemicals to dissolve the coating, but mild enough to leave the electrode unaffected. Use HANNA HI-7007 or HI-8077 Oil and Fat Cleaning Solution for effective cleaning after each measurement, followed by flushing with tap water.\u003c\/p\u003e\n\u003ch3\u003eCleaning Solutions\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eAcid cleaning solution for meat grease and fats (HI-700630P)\u003c\/li\u003e\n\u003cli\u003eAgricultural – general purpose (HI-700661P)\u003c\/li\u003e\n\u003cli\u003eAlgae, Fungi and Bacteria (HI-700671P)\u003c\/li\u003e\n\u003cli\u003eAlkaline cleaning for meat grease and fats (HI-70631)\u003c\/li\u003e\n\u003cli\u003eBlood – Cleaning and Disinfection Solution (HI-700632P)\u003c\/li\u003e\n\u003cli\u003eBread and Dough (HI-700684)\u003c\/li\u003e\n\u003cli\u003eBrewing – beer and wort (HI-700682)\u003c\/li\u003e\n\u003cli\u003eCellulose (HI-700680P)\u003c\/li\u003e\n\u003cli\u003eCheese (HI-700642P)\u003c\/li\u003e\n\u003cli\u003eChocolate (HI-700685)\u003c\/li\u003e\n\u003cli\u003eDairy – Cleaning and Disinfection Solution (HI-700641P)\u003c\/li\u003e\n\u003cli\u003eGeneral Purpose – (HI-7061 \u0026amp; HI-8061); Pool Line (HI-70614); Groline (7061-050)\u003c\/li\u003e\n\u003cli\u003eHumus – agriculture (HI-700664P)\u003c\/li\u003e\n\u003cli\u003eInk (HI-70681L)\u003c\/li\u003e\n\u003cli\u003eInorganic substances\u003c\/li\u003e\n\u003cli\u003eMilk (HI-700640P)\u003c\/li\u003e\n\u003cli\u003eOils and fats (HI-7077 \u0026amp; HI-8077)\u003c\/li\u003e\n\u003cli\u003ePools and Spas (HI-70774)\u003c\/li\u003e\n\u003cli\u003eProteins (HI-7073 \u0026amp; HI-8073)\u003c\/li\u003e\n\u003cli\u003eSalt – industrial processes (HI-700670P)\u003c\/li\u003e\n\u003cli\u003eSkin – general (HI-700620P)\u003c\/li\u003e\n\u003cli\u003eSkin grease and sebum – cosmetics industry (HI-700621P)\u003c\/li\u003e\n\u003cli\u003eSoil deposits – agriculture (HI-700663P)\u003c\/li\u003e\n\u003cli\u003eSushi Rice (HI-700683P)\u003c\/li\u003e\n\u003cli\u003eWine deposits (HI-700635P)\u003c\/li\u003e\n\u003cli\u003eWine stains (HI-700636P)\u003c\/li\u003e\n\u003cli\u003eYogurt (HI-700643P)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eCleaning is a fast and effective routine which should be performed on a regular basis as a preventative measure against using dirty equipment.\u003c\/li\u003e\n\u003cli\u003eAlways clean the junction and bulb of the electrode\u003c\/li\u003e\n\u003cli\u003eAlways clean your meter, electrode or probe before calibration\u003c\/li\u003e\n\u003cli\u003eThe most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, modern pH meters assume that the electrode is clean and will give you a starting point accordingly. So, if you haven’t cleaned your meter, your readings will be inaccurate from the start.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eAll ready-to-use cleaning solutions are made with the highest quality of materials and chemicals complying with standards set by the National Institute of Standards and Technology (NIST), to ensure quality and accuracy. Also available in light blocking bottles to prevent against degradation by UV light compatible with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":55843526672757,"sku":"HI-700661P","price":50.07,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/electrode-cleaning-solution-for-agricultural-applications.jpg?v=1756221441"},{"product_id":"hanna-instruments-hi-50036p-quick-calibration-solution-for-groline-ph-and-ec-meters-25-sachets","title":"Hanna Instruments HI-50036P Quick Calibration Solution for GroLine pH and EC Meters, 25 sachets","description":"\u003cp\u003eHI-50036P is a quick calibration solution for use with Hanna’s Gro Line pH and\/or EC\/TDS meters and particularly useful for users who have no need to calibrate frequently. \u003c\/p\u003e\u003cp\u003eUsing the Quick Cal function found in compatible meters allows for a single point calibration for pH and\/or conductivity sensors. Each sachet has a visible lot number and expiry date stamped on it, and made of light block foil ensuring freshness each time one is opened.\u003c\/p\u003e \u003cp\u003eCalibration Solutions at Hanna have been specially formulated to have an expiry date of 5 years from manufacture for an unopened sachet. The HI-50036P is for 25 sachets containing 20 mL of calibration solution. It is 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 \u003ch3\u003eSpecial Features:\u003c\/h3\u003e \u003cp\u003e\u003cstrong\u003eQuick Calibration Solution\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCalibration solution for Gro line pH and EC\/TDS meters\u003c\/li\u003e \u003cli\u003epH calibration buffer value of pH 6.86\u003c\/li\u003e \u003cli\u003eEC calibration standard value of 5,000 μS\/cm (5.00 mS\/cm)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eConvenience of individual packaging\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eIdeal for users that 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 \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eLight block packaging\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003ePrevents any oxidation from UV light which could alter the pH buffer value\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eHanna recommends using HI-7061-023 Groline General Purpose Cleaning Solution alongside this product.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003esachets\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e20 mL\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuantity\u003c\/td\u003e\n\u003ctd\u003e25\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640065368437,"sku":"HI-50036P","price":40.66,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-50036p-quick-calibration-solution-for-groline-ph-and-ec-meters-25-sachets_13304f92-8530-41d3-839b-1297591e2ce2.jpg?v=1791580244"},{"product_id":"hanna-instruments-hi-5036-012-groline-quick-cal-solution-ph-ec-120ml","title":"Hanna Instruments HI-5036-012 GroLine Quick Cal Solution pH\/EC 120ml","description":"\u003cp\u003eHI-5036-012 is a quick calibration solution for use with Hanna's Gro Line pH and\/or EC\/TDS meters. 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Using the Quick Cal function found in compatible meters allows for a single point calibration for pH and\/or conductivity sensors.\u003c\/p\u003e\u003ch3\u003eQuick Calibration Solution for Gro Line pH and EC Meters (230 ml) - HI-5036-023\u003c\/h3\u003e \u003cp\u003eThe HI-5036-023 contains 230 mL of calibration solution and complies with ISO3696\/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 \u003ch3\u003eQuick Calibration Solution\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eCalibration solution for Gro line pH and EC\/TDS meters\u003c\/li\u003e \u003cli\u003epH calibration buffer value of pH 6.86\u003c\/li\u003e \u003cli\u003eEC calibration standard value of 5,000 μS\/cm (5.00 mS\/cm)\u003c\/li\u003e \u003c\/ul\u003e \u003ch3\u003eAir tight bottle with tamper-proof seal\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eEnsures quality and freshness of solution\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eHanna recommends using HI-7061-023 Groline General Purpose Cleaning Solution alongside this product.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640066580853,"sku":"HI-5036-023","price":19.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-5036-023-quick-calibration-solution-for-groline-ph-and-ec-meters-230-ml.jpg?v=1791580287"},{"product_id":"hanna-instruments-hi-7004-012-groline-calibration-solution-ph4-01-120ml","title":"Hanna Instruments HI-7004-012 GroLine Calibration Solution pH4.01, 120ml","description":"\u003cp\u003eHI-7004-012 is a 120 mL bottle of high quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eHanna calibration buffers have the lot number and expiry date clearly marked on the label. 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Regular cleansing and proper care ensures the electrode is correctly maintained for maximum performance to achieve accurate readings, faster response times, and repeatability.\u003c\/p\u003e \u003cp\u003eHI-70663P is a highly-effective cleaning solution available in easy-to-use 20ml sachets, specially formulated for pH electrodes used in agricultural applications, particularly soil deposits.\u003c\/p\u003e \u003cp\u003eElectrodes become dirty from use and will produce inaccurate results even if they read correctly in a pH buffer. HANNA’s cleaning solutions eliminate impurities and residues which are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly.\u003c\/p\u003e \u003cp\u003eAt HANNA, we suggest cleaning the bulb and junction of your electrode on a regular basis in our ready-to-use cleaning solutions to ensure that the probe is always clean and to prevent any clogging of the junction.\u003c\/p\u003e \u003cp\u003eAll cleaning solutions are packaged in an air tight bottle with tamper-proof seal to ensure quality and freshness. All solutions show a batch number and expiry date.\u003c\/p\u003e \u003cp\u003eAvailable in 230ml and 500ml bottles, and individual 20ml sachets in packs of 25.\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 cleaned using the HANNA sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eUseful tips:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAfter cleaning, rinse the electrode in tap water and then place in a HANNA Storage Solution before calibrating or taking measurements.\u003c\/li\u003e \u003cli\u003eAlways follow up with a HANNA Buffer\/calibrating Solution for the best results.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhich cleaning solution to use . . .?\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eGeneral Cleaning\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA General Cleaning Solution (HI-7061) for between 30 minutes and 1-and-a-half hours to dissolve mineral deposits and other general coatings. (Non-aggressive formula).\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProtein Coating\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA Protein Cleaning Solution (HI-7073) for 15 minutes to enzymatically dissolve deposits from protein sources.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eInorganic Soak\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA Inorganic Cleaning Solution (HI-7074) for 5 to 15 minutes. This cleaner is especially effective at removal of precipitates caused by possible reactions - Usually used in industrial applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eOil and Grease Rinse\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eOil and grease removal require the correct chemicals to dissolve the coating, but mild enough to leave the electrode unaffected. Use HANNA HI-7007 or HI-8077 Oil and Fat Cleaning Solution for effective cleaning after each measurement, followed by flushing with tap water.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecialised Cleaning Solutions\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eWine deposits (HI-70635L)\u003c\/li\u003e \u003cli\u003eWine stains (HI-70636L)\u003c\/li\u003e \u003cli\u003eSalt (HI-70670L)\u003c\/li\u003e \u003cli\u003eCheese (HI-70642L)\u003c\/li\u003e \u003cli\u003eMilk (HI-70640L)\u003c\/li\u003e \u003cli\u003eDairy – Cleaning and Disinfection Solution (HI-70641)\u003c\/li\u003e \u003cli\u003eSoil (HI-70663L)\u003c\/li\u003e \u003cli\u003eHumus (HI-70664L)\u003c\/li\u003e \u003cli\u003eAgricultural (HI-700661P)\u003c\/li\u003e \u003cli\u003eInk (HI-70681L)\u003c\/li\u003e \u003cli\u003eAlgae, Fungi and Bacteria (HI-70671L)\u003c\/li\u003e \u003cli\u003eBlood – Cleaning and Disinfection Solution (HI-70632L)\u003c\/li\u003e \u003cli\u003eAlkaline cleaning for meat grease and fats (HI-70631L)\u003c\/li\u003e \u003cli\u003eAcid cleaning solution for meat grease and fats (HI-700630P)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eRemember: \u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCleaning is a fast and effective routine which should be performed on a regular basis as a preventative measure against using dirty equipment.\u003c\/li\u003e \u003cli\u003eAlways clean the junction and bulb of the electrode\u003c\/li\u003e \u003cli\u003eAlways clean your meter, electrode or probe before calibration\u003c\/li\u003e \u003cli\u003eThe most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, modern pH meters assume that the electrode is clean and will give you a starting point accordingly. So, if you haven’t cleaned your meter, your readings will be inaccurate from the start.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eAll ready-to-use cleaning solutions are made with the highest quality of materials and chemicals complying with standards set by the National Institute of Standards and Technology (NIST), to ensure quality and accuracy. Also available in light blocking bottles to prevent against degradation by UV light compatible with FDA Standards (US Food and Drug Administration).\u003c\/p\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\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640071299445,"sku":"HI-700663P","price":50.06,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/cleaning-solution-for-soil-deposits-agriculture.jpg?v=1791580461"},{"product_id":"hanna-instruments-hi-700664p-cleaning-solution-for-humus-deposits-agriculture-25-x-20-ml-sachets","title":"Hanna Instruments HI-700664P Cleaning Solution for Humus Deposits (Agriculture), 25 x 20 mL sachets","description":"\u003cp\u003eAim for accurate readings every time with a wide variety of ready-to-use HANNA cleaning solutions.\u003c\/p\u003e\u003cp\u003eThe HI-700664P is a pack of 25 x 20 mL sachets of cleaning solution for Humus Deposits (Agriculture)\u003c\/p\u003e \u003cp\u003eHI-700664P is a highly-effective cleaning solution available in easy-to-use 20ml sachets, specially formulated for pH electrodes used in agricultural applications with humus organic soil matter.\u003c\/p\u003e \u003cp\u003eElectrodes become dirty from use and will produce inaccurate results even if they read correctly in a pH buffer. HANNA’s cleaning solutions eliminate impurities and residues which are left on electrode surfaces when immersed in samples during measurement or when stored incorrectly.\u003c\/p\u003e \u003cp\u003eAt HANNA, we suggest cleaning the bulb and junction of your electrode on a regular basis in our ready-to-use cleaning solutions to ensure that the probe is always clean and to prevent any clogging of the junction.\u003c\/p\u003e \u003cp\u003eAll cleaning solutions are packaged in an air tight bottle with tamper-proof seal to ensure quality and freshness. All solutions show a batch number and expiry date.\u003c\/p\u003e \u003cp\u003eAvailable in 230ml and 500ml bottles, and individual 20ml sachets in packs of 25.\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 cleaned using the HANNA sachets, it is like using a newly opened bottle of solution!\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eUseful tips:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAfter cleaning, rinse the electrode in tap water and then place in a HANNA Storage Solution before calibrating or taking measurements.\u003c\/li\u003e \u003cli\u003eAlways follow up with a HANNA Buffer\/calibrating Solution for the best results.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eWhich cleaning solution to use . . .?\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eGeneral Cleaning\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA General Cleaning Solution (HI-7061) for between 30 minutes and 1-and-a-half hours to dissolve mineral deposits and other general coatings. (Non-aggressive formula).\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProtein Coating\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA Protein Cleaning Solution (HI-7073) for 15 minutes to enzymatically dissolve deposits from protein sources.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eInorganic Soak\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA Inorganic Cleaning Solution (HI-7074) for 5 to 15 minutes. This cleaner is especially effective at removal of precipitates caused by possible reactions - Usually used in industrial applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eOil and Grease Rinse\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eOil and grease removal require the correct chemicals to dissolve the coating, but mild enough to leave the electrode unaffected. Use HANNA HI-7007 or HI-8077 Oil and Fat Cleaning Solution for effective cleaning after each measurement, followed by flushing with tap water.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecialised Cleaning Solutions\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eWine deposits (HI-70635L)\u003c\/li\u003e \u003cli\u003eWine stains (HI-70636L)\u003c\/li\u003e \u003cli\u003eSalt (HI-70670L)\u003c\/li\u003e \u003cli\u003eCheese (HI-70642L)\u003c\/li\u003e \u003cli\u003eMilk (HI-70640L)\u003c\/li\u003e \u003cli\u003eDairy – Cleaning and Disinfection Solution (HI-70641)\u003c\/li\u003e \u003cli\u003eSoil (HI-70663L)\u003c\/li\u003e \u003cli\u003eHumus (HI-70664L)\u003c\/li\u003e \u003cli\u003eAgricultural (HI-700661P)\u003c\/li\u003e \u003cli\u003eInk (HI-70681L)\u003c\/li\u003e \u003cli\u003eAlgae, Fungi and Bacteria (HI-70671L)\u003c\/li\u003e \u003cli\u003eBlood – Cleaning and Disinfection Solution (HI-70632L)\u003c\/li\u003e \u003cli\u003eAlkaline cleaning for meat grease and fats (HI-70631L)\u003c\/li\u003e \u003cli\u003eAcid cleaning solution for meat grease and fats (HI-700630P)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eRemember: \u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCleaning is a fast and effective routine which should be performed on a regular basis as a preventative measure against using dirty equipment.\u003c\/li\u003e \u003cli\u003eAlways clean the junction and bulb of the electrode\u003c\/li\u003e \u003cli\u003eAlways clean your meter, electrode or probe before calibration\u003c\/li\u003e \u003cli\u003eThe most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, modern pH meters assume that the electrode is clean and will give you a starting point accordingly. So, if you haven’t cleaned your meter, your readings will be inaccurate from the start.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eAll ready-to-use cleaning solutions are made with the highest quality of materials and chemicals complying with standards set by the National Institute of Standards and Technology (NIST), to ensure quality and accuracy. Also available in light blocking bottles to prevent against degradation by UV light compatible with FDA Standards (US Food and Drug Administration).\u003c\/p\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\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640071332213,"sku":"HI-700664P","price":61.94,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/cleaning-solution-for-humus-deposits-agriculture-25-20-ml-s.jpg?v=1791580462"},{"product_id":"hanna-instruments-hi-7007-023-groline-ph-7-01-calibration-buffer-230-ml","title":"Hanna Instruments HI-7007-023 GroLine pH 7.01 Calibration Buffer, 230 mL","description":"\u003cp\u003eHI-7007-023 is a 230 mL bottle of high quality pH 7.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis.\u003c\/p\u003e \u003cp\u003eHanna calibration buffers have the lot number and expiry date clearly marked on the label. All bottles are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiry of 2 years from the date of manufacture for an unopened bottle.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSpecially formulated to have an expiry date of 2 years from manufacture for an unopened bottle\u003c\/li\u003e \u003cli\u003eAccuracy of ±0.02 pH @ 25°C\u003c\/li\u003e \u003cli\u003eSupplied with a Certificate of Analysis\u003c\/li\u003e \u003cli\u003eTemperature chart of the actual pH value at various temperatures printed on each bottle\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.02 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Value @25°C\u003c\/td\u003e\n\u003ctd\u003e7.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003ebottles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e230 mL\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":57640071627125,"sku":"HI-7007-023","price":19.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-7007-023-groline-ph-7-01-calibration-buffer-230-ml.jpg?v=1791580473"},{"product_id":"hanna-instruments-hi-7010-012-ph-10-01-groline-calibration-solution","title":"Hanna Instruments HI-7010-012  pH 10.01 GroLine Calibration Solution","description":"\u003cp\u003eHI-7010-012 is a 120 mL bottle of high quality pH 10.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Specially made for the GroLine series.\u003c\/p\u003e\u003cp\u003eHanna calibration buffers have the lot number and expiry date clearly marked on the label. All bottles are air tight with a tamper-proof seal to ensure the quality of the solution. Hanna's line of technical calibration buffers have been specially formulated to have an expiry of 2 years from the date of manufacture for an unopened bottle.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSpecially formulated to have an expiry date of 2 years from manufacture for an unopened bottle\u003c\/li\u003e \u003cli\u003eAccuracy of ±0.02 pH @ 25°C\u003c\/li\u003e \u003cli\u003eSupplied with a Certificate of Analysis\u003c\/li\u003e \u003cli\u003eTemperature chart of the actual pH value at various temperatures printed on each bottle\u003c\/li\u003e \u003c\/ul\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.02 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Value @25°C\u003c\/td\u003e\n\u003ctd\u003e10.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003ebottles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e120 mL\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":57640071987573,"sku":"HI-7010-012","price":8.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-7010-012-ph-10-01-groline-calibration-solution.jpg?v=1791580487"},{"product_id":"hanna-instruments-hi-7010-023-groline-ph-10-01-calibration-buffer-230-ml","title":"Hanna Instruments HI-7010-023 GroLine pH 10.01 Calibration Buffer, 230 mL","description":"\u003cp\u003eAchieve accurate pH readings and check your meter and electrode is functioning correctly with Hanna Groline buffer solutions. \u003c\/p\u003e\u003ch3\u003eHI-7010-023 is a 230 mL bottle of high quality pH 10.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis.\u003c\/h3\u003e \u003cp\u003eThe pH 10.01 buffer in a 230ml bottle is designed specifically to accompany the GroLine series of meters and solutions. Ideal for those requiring an accurate alkaline reading, particularly suitable for those working in water purification plants, 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 \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. pH4, along with pH7, can also be used as an emergency storage solution.\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. 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 \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\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\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eAccuracy\u003c\/td\u003e\n\u003ctd\u003e±0.02 pH\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003epH Value @25°C\u003c\/td\u003e\n\u003ctd\u003e10.01\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003ebottles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e230 mL\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":57640072020341,"sku":"HI-7010-023","price":19.38,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-7010-023-groline-ph-10-01-calibration-buffer-230-ml_456651a4-1aa5-4f23-b0ff-ceb9adac5eb4.jpg?v=1791580488"},{"product_id":"hanna-instruments-hi-70300-012-groline-storage-solution-for-ph-electrodes-120ml","title":"Hanna Instruments HI-70300-012 GroLine Storage Solution for pH electrodes, 120ml","description":"\u003cp\u003eHI-70300-012 is a 120mL bottle of GroLine storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes.\u003c\/p\u003e\u003cp\u003eIt is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH electrode hydrated. Ideally a storage solution should be used; never store an electrode in distilled or deionised water. The Hanna Instruments storage solution is specifically formulated to minimise microbial growth and to prevent any diffusion\/osmotic effects from storing a probe in a solution with the highly concentrated inner reference electrolyte. Storing your pH and\/or ORP electrodes in a storage solution will also keep the junction clear.\u003c\/p\u003e \u003cp\u003eMaintaining the hydrated layer and clear junction will help to ensure a fast and reliable measurement. In the case of cleaning your pH electrode in one of our cleaning solutions, we recommend soaking the electrode in the HI-7061-012 GroLine storage solution for at least one hour before taking measurements.\u003c\/p\u003e \u003cp\u003e* Never store pH or ORP electrodes in distilled or deionised water. Doing so will shorten the life of the sensor.\u003c\/p\u003e \u003ch3\u003eKey Features\u003c\/h3\u003e \u003cul\u003e \u003cli\u003eSpecial formulation to minimise microbial growth and osmotic\/diffusion effects between the solution and inner reference electrolyte\u003c\/li\u003e \u003cli\u003eManufactured specifically for pH and ORP electrodes\u003c\/li\u003e \u003cli\u003eAir tight bottle with tamper-proof seal to ensure the quality and freshness of solution\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eEach bottle marked with lot number and expiry date and specially formulated to have an expiry of 5 years from manufacture for an unopened bottle.\u003c\/p\u003e \u003cp\u003eHanna recommends using HI-7061-023 Groline General Purpose Cleaning Solution alongside this product.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eelectrode storage solution\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage\u003c\/td\u003e\n\u003ctd\u003ebottles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e120 mL\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\u003eNo\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640072544629,"sku":"HI-70300-012","price":8.93,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-70300-012-groline-storage-solution-for-ph-electrodes-120ml.jpg?v=1791580509"},{"product_id":"hanna-instruments-hi-70300-050-groline-storage-solution-for-ph-and-orp-electrodes-500ml","title":"Hanna Instruments HI-70300-050 Groline Storage solution for pH and ORP electrodes, 500ml","description":"\u003cp\u003eHI-70300-050 is a 500mL bottle of GroLine storage solution prepared with reagent grade chemicals that can be used to ensure optimum performance of your pH and ORP electrodes.\u003c\/p\u003e\u003cp\u003eHI-70300-050 Storage solution for pH and ORP electrodes, 500ml - Groline Range\u003c\/p\u003e \u003cp\u003eIt is necessary to store a pH electrode in a solution in order to keep the glass membrane of the pH electrode hydrated. Ideally a storage solution should be used; never store an electrode in distilled or deionised water. The Hanna Instruments storage solution is specifically formulated to minimise microbial growth and to prevent any diffusion\/osmotic effects from storing a probe in a solution with the highly concentrated inner reference electrolyte. Storing your pH and\/or ORP electrodes in a storage solution will also keep the junction clear.\u003c\/p\u003e \u003cp\u003eMaintaining the hydrated layer and clear junction will help to ensure a fast and reliable measurement. In the case of cleaning your pH electrode in one of our cleaning solutions, we recommend soaking the electrode in the HI-70300-050 GroLine storage solution for at least one hour before taking measurements.\u003c\/p\u003e \u003cp\u003e* Never store pH or ORP electrodes in distilled or deionised water. 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Hanna suggests cleaning the bulb and junction of your electrode on a regular basis to ensure that the probe is always clean and to prevent any clogging of the junction.\u003c\/p\u003e \u003cp\u003eElectrodes can become dirty from use and will produce inaccurate results even if they read correctly in a pH buffer.\u003c\/p\u003e \u003cp\u003eThe most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, the instrument assumes that the electrode is clean and that the standardisation curve created during the calibration process will remain a valid reference until the next calibration. pH meters on the market today will allow an offset voltage of approximately ±60 mV. The deviation from 0 mV is not unusual but ideally should be no greater than ±30 mV. The calibration process compensates for the change in offset voltage. 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All solutions show a batch number and expiry date.\u003c\/p\u003e \u003cp\u003eAvailable in 500ml bottles, and individual 20ml sachets in packs of 25.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eUseful tips:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eAfter cleaning, rinse the electrode in tap water and then place in a HANNA Storage Solution before calibrating or taking measurements.\u003c\/li\u003e \u003cli\u003eAlways follow up with a HANNA Buffer\/calibrating Solution for the best results.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eThe cleaning solution to use . . .?\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eGeneral Cleaning\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA General Cleaning Solution (HI7061) for between 30 minutes and 1-and-a-half hours to dissolve mineral deposits and other general coatings. (Non-aggressive formula).\u003c\/p\u003e \u003cul\u003e \u003cli\u003eProtein Coating\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA Protein Cleaning Solution (HI-7073) for 15 minutes to enzymatically dissolve deposits from protein sources.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eInorganic Soak\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eSoak in HANNA Inorganic Cleaning Solution (HI-7074) for 5 to 15 minutes. This cleaner is especially effective at removal of precipitates caused by possible reactions - Usually used in industrial applications.\u003c\/p\u003e \u003cul\u003e \u003cli\u003eOil and Grease Rinse\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eOil and grease removal require the correct chemicals to dissolve the coating, but mild enough to leave the electrode unaffected. Use HANNA HI-7007 or HI-8077 Oil and Fat Cleaning Solution for effective cleaning after each measurement, followed by flushing with tap water.\u003c\/p\u003e \u003cp\u003e\u003cstrong\u003eSpecialised Cleaning Solutions\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eWine deposits (HI-70635L)\u003c\/li\u003e \u003cli\u003eWine stains (HI-70636L)\u003c\/li\u003e \u003cli\u003eSalt (HI-70670L)\u003c\/li\u003e \u003cli\u003eCheese (HI-70642L)\u003c\/li\u003e \u003cli\u003eMilk (HI-70640L)\u003c\/li\u003e \u003cli\u003eDairy – Cleaning and Disinfection Solution (HI-70641)\u003c\/li\u003e \u003cli\u003eSoil (HI-70663L)\u003c\/li\u003e \u003cli\u003eHumus (HI-70664L)\u003c\/li\u003e \u003cli\u003eAgricultural (HI-700661P)\u003c\/li\u003e \u003cli\u003eInk (HI-70681L)\u003c\/li\u003e \u003cli\u003eAlgae, Fungi and Bacteria (HI-70671L)\u003c\/li\u003e \u003cli\u003eBlood – Cleaning and Disinfection Solution (HI-70632L)\u003c\/li\u003e \u003cli\u003eAlkaline cleaning for meat grease and fats (HI-70631L)\u003c\/li\u003e \u003cli\u003eAcid cleaning solution for meat grease and fats (HI-700630P)\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003e\u003cstrong\u003eRemember:\u003c\/strong\u003e\u003c\/p\u003e \u003cul\u003e \u003cli\u003eCleaning is a fast and effective routine which should be performed on a regular basis as a preventative measure against using dirty equipment.\u003c\/li\u003e \u003cli\u003eAlways clean the junction and bulb of the electrode\u003c\/li\u003e \u003cli\u003eAlways clean your meter, electrode or probe before calibration\u003c\/li\u003e \u003cli\u003eThe most common cause for pH measurement inaccuracies is an unclean or improperly cleaned electrode. This is very important to note, because during calibration, modern pH meters assume that the electrode is clean and will give you a starting point accordingly. So, if you haven’t cleaned your meter, your readings will be inaccurate from the start.\u003c\/li\u003e \u003c\/ul\u003e \u003cp\u003eAll ready-to-use cleaning solutions are made with the highest quality of materials and chemicals complying with standards set by the National Institute of Standards and Technology (NIST), to ensure quality and accuracy. Also available in light blocking bottles to prevent against degradation by UV light compatible with FDA Standards (US Food and Drug Administration).\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640076247413,"sku":"HI-70664L","price":39.62,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/electrode-cleaning-solution-from-humus-related-products.jpg?v=1791580620"},{"product_id":"hanna-instruments-hi-70960-preparation-solution-for-solid-or-semi-solid-samples","title":"Hanna Instruments HI-70960 Preparation Solution for Solid or Semi Solid Samples","description":"\u003cp\u003eFor specific sample testing, choose a preparation solution specially made for the task. 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If the level is low, refill with the proper electrolyte solution to ensure optimum performance. This simple maintenance helps guarantee adequate head pressure to promote the flow of reference electrolyte into the sample being measured.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640093778293,"sku":"HI-9071","price":17.86,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/hi-9071-gelled-bridge-electrolyte-for-fc2053-ph-electrode-hi-981030-groline-ph-tester_c349b4e8-c3ea-445a-a0da-93dd02fc0638.jpg?v=1791581143"}],"url":"https:\/\/testallwater.co.uk\/collections\/cleaning-and-calibration-solutions.oembed?page=2","provider":"Test All Water","version":"1.0","type":"link"}