{"product_id":"hanna-instruments-hi-775-26-reagents-for-freshwater-alkalinity-checker-hi-775-25-tests","title":"Hanna Instruments HI-775-26 Reagents For Freshwater Alkalinity Checker HI-775 (25 tests)","description":"\u003cp\u003eThe HI-775-26 are easy to use replacement reagents for the HI-775 Freshwater Alkalinity Checker® HC. \u003c\/p\u003e\u003cp\u003eThese high-quality reagents are clearly marked with the lot number and expiry date on each packet for traceability.\u003c\/p\u003e\u003cp\u003eThe HI-775-26 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Freshwater Alkalinity Checker® HC. These reagents follow the Colorimetric Method in which the reaction causes a distinctive range of colours from yellow to green to blue to develop. By simply adding one drop of the Chlorine Remover to remove the chlorine interference, and subsequently adding 1 mL of the Alkalinity Reagent to the sample, the reaction will take place and the HI-775 will determine the concentration from the colour that is produced. The results will be displayed in ppm of CaCO\u003csub\u003e3\u003c\/sub\u003e. These reagents are designed to be used with samples that have an expected range of 0 to 500 ppm CaCO\u003csub\u003e3\u003c\/sub\u003e.\u003c\/p\u003e\u003ch3\u003eTip for an accurate measurement\u003c\/h3\u003e\u003cp\u003eIt is important that the sample does not contain any debris.\u003c\/p\u003e\u003cp\u003eWhenever the cuvette is placed into the measurement cell, it must be dry outside and completely free of fingerprints, oil or dirt. Wipe it thoroughly with HI-731318 or a lint-free cloth prior to insertion.\u003c\/p\u003e\u003cp\u003eShaking the cuvette can generate bubbles, causing higher readings. To obtain accurate measurements, remove such bubbles by swirling or by gently tapping the cuvette.\u003c\/p\u003e\u003cp\u003eDo not let the reacted sample stand for too long after reagent is added, or accuracy will be lost.\u003c\/p\u003e\u003cp\u003eAfter the reading, it is important to discard the sample immediately, otherwise the glass might become permanently stained.\u003c\/p\u003e\u003ch3\u003eFour steps. One click. Instant Readout.\u003c\/h3\u003e\u003cp\u003e1. ‘Zero’ the Checker®HC with your vial inside\u003c\/p\u003e\u003cp\u003e2. Place a 10ml water sample into the vial and add your reagent\u003c\/p\u003e\u003cp\u003e3. Place your vial into your Checker®HC\u003c\/p\u003e\u003cp\u003e4. Press the button and read the results\u003c\/p\u003e\u003cp\u003eAlso available: HI-775-11 calibration set.\u003c\/p\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57640088699253,"sku":"HI-775-26","price":30.02,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/reagents-for-alkalinity-checker-25pcs.jpg?v=1791580974","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-hi-775-26-reagents-for-freshwater-alkalinity-checker-hi-775-25-tests","provider":"Test All Water","version":"1.0","type":"link"}