{"title":"Calibration Fluid","description":"\u003cp\u003eTo ensure your salinity testers and ph probes are working correctly, or even to double check your using your test kits properly calibration fluid is an essential part of a reef keepers toolkit.\u003c\/p\u003e","products":[{"product_id":"ph-7-00-ph-calibration-fluid","title":"Neptune PH 7.00 PH Calibration Fluid","description":"\u003cp\u003eNeptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure. \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eOver the course of a couple months, it is common for pH probes to not read exactly correct and that can be fixed by calibrating your probe. Almost all monitoring devices will allow you to calibrate your pH probe, and a majority of them will let you calibrate your probe to a high and a low point. For saltwater aquariums, it is best to use a calibration solution with a pH of 7.0 for the low point and 10.0 pH for the high.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eWe recommend calibrating standard pH probes every 3 months or as needed, where double junction pH probes can go up to 6 months before calibration is required. \u003c\/p\u003e","brand":"Neptune Systems","offers":[{"title":"Default Title","offer_id":57054583521611,"sku":"NEPTUNE-PH7","price":4.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/2_0_207519-neptunesystems-ph7-fr_76.jpg?v=1776423714"},{"product_id":"ph-10-00-ph-calibration-fluid","title":"Neptune PH 10.00 PH Calibration Fluid","description":"\u003cp\u003eNeptune Systems single-use pH calibration packets make calibrating your pH probe simple and fast. Just tear open the top, and a stick your probe into the solution when performing the calibration procedure. \u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eOver the course of a couple months, it is common for pH probes to not read exactly correct and that can be fixed by calibrating your probe. Almost all monitoring devices will allow you to calibrate your pH probe, and a majority of them will let you calibrate your probe to a high and a low point. For saltwater aquariums, it is best to use a calibration solution with a pH of 7.0 for the low point and 10.0 pH for the high.\u003c\/p\u003e\u003cp\u003e \u003c\/p\u003e\u003cp\u003eWe recommend calibrating standard pH probes every 3 months or as needed, where double junction pH probes can go up to 6 months before calibration is required. \u003c\/p\u003e","brand":"Neptune Systems","offers":[{"title":"Default Title","offer_id":57054583685451,"sku":"NEPTUNE-PH10","price":4.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/2_0_207520-neptunesystems-ph10-fr_78.jpg?v=1776423690"},{"product_id":"milwaukee-10-01-ph-buffer-calibration-fluid","title":"Milwaukee\/Neptune 10.01 pH Buffer calibration fluid","description":"\u003cp\u003eThe Milwaukee PH 10.01 Buffer can be used on your Neptune Systems equipment and other PH probes in order to re-calibrate it, to give you more accurate readings.\u003c\/p\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":57054655217995,"sku":"OTHER-MILK-10-CALIB","price":2.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/10.01.jpg?v=1776424387"},{"product_id":"milwaukee-7-01-ph-buffer-calibration-fluid","title":"Milwaukee\/Neptune 7.01 pH Buffer calibration fluid","description":"\u003cp\u003eThe Milwaukee PH Buffer can be used on your Neptune Systems equipment in order to re-calibrate it, to give you more accurate readings.\u003c\/p\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":57054655381835,"sku":"OTHER-MILK-7-CALIB","price":2.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/7.01.jpg?v=1776424393"},{"product_id":"milwaukee-4-01-ph-buffer-calibration-fluid","title":"Milwaukee\/Neptune 4.01 pH Buffer calibration fluid","description":"\u003cp\u003eThe Milwaukee PH 7.01 Buffer can be used on your Neptune Systems equipment and other PH probes in order to re-calibrate it, to give you more accurate readings.\u003c\/p\u003e","brand":"Milwaukee","offers":[{"title":"Default Title","offer_id":57054655480139,"sku":"OTHER-MILK-4-CALIB","price":2.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/4.01.jpg?v=1776424377"},{"product_id":"fauna-marin-35ppt-salinity-reference-recalibration-fluid-100ml","title":"Fauna Marin 35ppt Salinity Reference calibration fluid 100ml","description":"\u003cp\u003eYou can use the 35PPT to test your Fauna Marin Salinity Manager is measuring the correctly. \u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Default Title","offer_id":57054703583563,"sku":"FAUNAMARIN-35PPT","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/f_m_fmreference_1_62.jpg?v=1776425027"},{"product_id":"fauna-marin-cleaning-solution-100ml","title":"Fauna Marin Cleaning Solution 100ml","description":"\u003cp\u003eThis cleaning solution is for the Fauna Marin Salinity Manager to ensure it is clean to give the most accurate reading. \u003c\/p\u003e","brand":"Fauna Marin","offers":[{"title":"Default Title","offer_id":57054703681867,"sku":"FAUNAMARIN-CLEANING","price":5.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/f_m_fmcleaningsolution_1_63.jpg?v=1776425032"},{"product_id":"hanna-alkalinity-calibration-set-772-alkalinity-checker","title":"Hanna Alkalinity Calibration Set 772-11 (772 Alkalinity Checker)","description":"\u003cp\u003eHI-772-11 is a high-quality set of calibration standards that allows users to validate the Marine Alkalinity Checker® HC - HI-772. The HI-772-11 includes one sealed cuvette for 0.0 dKH and one cuvette that is tinted to an equivalent 5.0 +\/-0.3 dKH sample @ 25°C. The calibration check set is produced using reagent grade chemicals in a temperature controlled environment.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57054749294923,"sku":"HANNA-CALIBRATION-772-11","price":29.9,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/772-11.jpg?v=1776425578"},{"product_id":"hanna-ulr-phosphorus-calibration-set-736-phosphorus-checker","title":"Hanna Phosphorus Calibration Set 736-11 (736 Phosphorus)","description":"\u003cp\u003eHanna optional Checker HC Calibration Sets provide a simple solution to validating your Checker HC. Each high quality set of standards is manufactured in our state-of-the-art facility and comes supplied with a Certificate of Analysis.\u003c\/p\u003e\u003cp\u003eHI-736-11 is a high-quality set of calibration standards that allows users to validate the Phosphorus Ultra Low Range Checker® HC – HI-736. The HI-736-11 includes one sealed cuvette for zero ppb phosphorus and one cuvette that is tinted to an equivalent 100 +\/- 10 ppb phosphorus sample @ 25°C. The calibration check set is produced using reagent grade chemicals in a temperature controlled environment.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57054749393227,"sku":"HANNA-CALIBRATION-736-11","price":22.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/image_13958.jpg?v=1776425584"},{"product_id":"tropic-marin-multi-standard","title":"Tropic Marin Multi Standard 250ml","description":"\u003cp\u003e\u003cstrong\u003eMineral reference solution for test kits (Ca, Mg, KH, K+)\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eReagents in test kits can lose their effectiveness and accuracy over time due to unfavourable storage conditions, high or low temperature and through exposure to oxygen. This can then  lead to incorrect results. The respective tests should therefore be checked against a stable standard on a regular basis.\u003c\/p\u003e\u003cp\u003eTropic Marin Multi-Standard is a solution, produced in the laboratory, and tested by means of ICP-OES. The solution is made with measured concentrations of calcium, magnesium, potassium and KH\/ alkalinity. It can be used to check the accuracy of test kits for those parameters and to calculate a correction factor, if the test kit is found to have a variance.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Default Title","offer_id":57054756110667,"sku":"TROPIC-MULTISTD","price":13.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/28150-multi-standard-250ml.jpg?v=1776425695"},{"product_id":"tropic-marin-np-standard-50ml","title":"Tropic Marin NP-Standard 50ml","description":"\u003cp\u003eMineral reference solution for test kits (NO3, PO4)\u003c\/p\u003e\u003cp\u003eReagents in test kits can lose their effectiveness and accuracy over time due to unfavourable storage conditions, high or low temperature and through exposure to oxygen. This can then lead to incorrect results. The respective tests should therefore be checked against a stable standard on a regular basis.\u003c\/p\u003e\u003cp\u003eTropic Marin NP Standard consists of a solution with nitrate and phosphate, in known concentrations, prepared in the test laboratory. It allows you to quickly check the precision of test kits for nitrate and phosphate. The deviation can be determined and a correction factor can be calculated as necessary.\u003c\/p\u003e","brand":"Tropic Marin","offers":[{"title":"Default Title","offer_id":57054756208971,"sku":"TROPIC-NPSTD","price":11.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/28160-np-standard-50ml.jpg?v=1776425701"},{"product_id":"fritz-35ppt-salinity-calibration-fluid-2oz-59ml","title":"Fritz 35ppt Salinity Calibration Fluid 1.25oz (37ml)","description":"\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003ePre-measured refractometer calibration solution takes the guesswork out of properly calibrating your instrument - with no need for expensive or unreliable measuring equipment. A refractometer accurately measuring salinity is essential to the saltwater hobbyist for success. Maintain its accuracy by recalibrating regularly.\u003c\/p\u003e\n\u003cp class=\"uk-heading-body tm-product-accordion-heading\"\u003e\u003cstrong\u003eDirections \u0026amp; Dosage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"tm-product-accordion-content\"\u003e\n\u003cp\u003e​Shake bottle well before application. Ensure the refractometer prism surface is clean, wipe with distilled or RO water if necessary and dry with a cloth. \u003cstrong\u003eAdd 2 - 3 drops of solution to the prism surface and cover.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eAdjust calibration mechanism to read to one of the following specifications:\u003c\/p\u003e\n\u003cp\u003e35 ppt\u003cbr\u003e1.0264 Specific Gravity\u003cbr\u003e1.3394 Refractive Index\u003cbr\u003e53 mS\/cm at 25 deg C\u003c\/p\u003e\n\u003cp\u003eClean and dry prism surface after use. Check instrument calibration regularly, once per month is recommended. Do not add test fluid back to container. Tightly replace lid to prevent evaporation. Note: If using and ATC Refractometer, allow 45 seconds before reading.\u003c\/p\u003e\n\u003cp\u003eIngredients: Sodium chloride, RODI water\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Fritz","offers":[{"title":"Default Title","offer_id":57054965268811,"sku":"780596","price":7.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/fritz_35ppt_calibration_fluid_1.jpg?v=1776427609"},{"product_id":"hanna-4-01-ph-value-sachet-20ml-hi-70004c","title":"Hanna 4.01 pH Value Sachet 20ml (HI-70004C)","description":"\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003eHI-70004C is a premium quality pH 4.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet.\u003c\/p\u003e\n\u003cp\u003eItem is a single 20ml sachet.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57055021793611,"sku":"745005","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/hanna_4.01_hi-70004c_calibration_sachet.jpg?v=1776427865"},{"product_id":"hanna-7-01-ph-value-sachet-20ml-hi-70007c","title":"Hanna 7.01 pH Value Sachet 20ml (HI-70007C)","description":"\u003cdiv data-content-type=\"html\" data-appearance=\"default\" data-element=\"main\"\u003e\n\u003cp\u003eHI-70007C is a premium quality pH 7.01 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet.\u003c\/p\u003e\n\u003cp\u003eItem is for a single 20ml Sachet.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57055021891915,"sku":"745006","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/hanna_7.01_hi-70007c_calibration_sachet.jpg?v=1776427870"},{"product_id":"hanna-hi-7004l-ph-4-01-buffer-calibration-solution-500ml","title":"Hanna HI-7004L pH 4.01 Buffer Calibration Solution 500ml","description":"\u003cp\u003eHI-7004L is a premium quality pH 4.01 calibration buffer 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. Reported values are accurate to +\/- 0.01 pH @ 25°C and are traceable to NIST Standard Reference Materials (SRMs).\u003c\/p\u003e\u003cp\u003eConvenience of individual packaging\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eIdeal for users that do not calibrate frequently\u003c\/li\u003e\n\u003cli\u003eIdeal for field use due to portability\u003c\/li\u003e\n\u003cli\u003eEvery sachet is as fresh as the day it was packaged\u003c\/li\u003e\n\u003cli\u003eLight block packaging prevents oxidation from UV light that could alter the buffer value\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eBottle is marked with lot number and expiration date.\u003c\/p\u003e\u003cp\u003eColor coded label for easy pH buffer value identification\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eEasy to identify different buffer values\u003c\/li\u003e\n\u003cli\u003eSolution does not contain any dyes that may stain the reference cell of a pH electrode \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57055180030283,"sku":"745061","price":37.92,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/hanna_ph_4.01_buffer_solution_500ml.jpg?v=1776429523"},{"product_id":"hanna-9-18-ph-value-sachet-20ml-hi-70009c","title":"Hanna 9.18 pH Value Sachet 20ml (HI-70009C)","description":"\u003cp\u003eHI-70009C is a premium quality pH 9.18 calibration buffer that is NIST traceable and supplied with a Certificate of Analysis. Each sachet has the lot number and expiration date stamped on it and is made of light block foil ensuring freshness each time one is opened. Hanna’s line of technical calibration buffers have been specially formulated to have an expiration of 5 years from the date of manufacture for an unopened sachet.\u003c\/p\u003e\u003cp\u003eItem is a single 20ml sachet.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57055257985355,"sku":"745064","price":1.99,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1033\/7065\/4027\/files\/ph_9.18_buffer_sachets_25_pieces_of_20ml.jpg?v=1776430212"}],"url":"https:\/\/krakencorals.co.uk\/collections\/calibration-fluid.oembed","provider":"Kraken Corals","version":"1.0","type":"link"}