{"product_id":"hanna-instruments-761-total-chlorine-ultra-low-range-handheld-colorimeter-checker-hc","title":"Hanna Instruments-761 Total Chlorine Ultra Low Range  Handheld Colorimeter, Checker HC - Expired Reagents","description":"The HI-723-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Chromium VI High Range Checker HC These reagents follow the Diphenylcarbohydrazide Method in which the reaction between chromium VI and the reagent causes a purple tint in the sample. By simply adding the packet of HI-723-25 reagent to the sample, the reaction will take place and the HI-723 will determine the concentration from the colour that is produced. The HI-723-25 are the replacement reagents for the HI-723 Chromium VI High Range Checker HC 25 Tests Sku: HI-723-25 \u003cdiv class=\"row\"\u003eThe Hanna Instruments-761 Checker is a simple, accurate, and cost effective way to measure ultra-low ranges of total chlorine.\u003cbr\u003e\n\u003cdiv class=\"section-row section 1\" id=\"description\"\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003eDesigned as a more accurate alternative to chemical test kits, this checker provides quick, accurate results in four easy steps.\u003c\/p\u003e\nThe Hanna Instruments-761 uses an adaptation of the USEPA method 330.5. The reaction between the chlorine and DPD reagent causes a pink tint in the sample.\u003cbr\u003e\n\u003ch3\u003e\u003cbr\u003e\u003c\/h3\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\nSmall palm-sized design\u003c\/div\u003e\n\u003cdiv class=\"section-text col-xs-12 rem-p-l rem-p-r\"\u003e\n\u003cp\u003eAccurate from 5ppb  5% of reading\u003c\/p\u003e\nDedicated to a single parameter\u003cbr\u003e\n\u003cp\u003eUses a single AAA battery\u003c\/p\u003e\nAuto Power Off after 10 minutes in inactivity\u003cbr\u003e\n\u003cp\u003eBuilt-in timer for timed reaction readings\u003c\/p\u003e\n\u003cbr\u003e\n\u003ch3\u003eIdeal for:\u003c\/h3\u003e\nWater Quality\u003cbr\u003e\n\u003cp\u003eEducation\u003c\/p\u003e\nWater Purification\u003cbr\u003e\n\u003cp\u003eEnvironmental\u003c\/p\u003e\n\u003cbr\u003e\u003cstrong\u003eOrder Information:\u003c\/strong\u003e\u003cbr\u003e\n\u003cp\u003eThe Hanna Instruments-761 Checker is supplied with 2 cuvettes and caps, reagent starter kit (6 packets for total chlorine ultra-low range - re-ordering information Hanna Instruments-761-25 x 25 tests), 1 x 1.5V AAA battery, and an instruction manual.\u003c\/p\u003e\n\u003cbr\u003e\n\u003cp\u003eAlso available: Calibration set Hanna Instruments-711-11\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFour steps. One click. Instant Readout\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"section-row section nine\"\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6 rem-pad-mobile rem-p-l\"\u003e\n\u003cdiv class=\"section-text col-xs-7 col-sm-9\"\u003e\n\u003cp\u003e1. Zero the CheckerHC with your vial inside\u003c\/p\u003e\n\u003c\/div\u003e\n2. Place a 10ml water sample into the vial and add your reagent\u003c\/div\u003e\n\u003cbr\u003e3. Place your vial into your CheckerHC\u003cbr\u003e\n\u003cdiv class=\"col-xs-12 col-sm-6 rem-pad-mobile rem-p-r\"\u003e\n\u003cdiv class=\"section-image col-xs-5 col-sm-3 circle-left\"\u003e\u003cbr\u003e\u003c\/div\u003e\n4. Press the button and read the results\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e \u003cul\u003e\n\u003cli\u003eThe HI-723-25 are high-quality reagents that are pre-measured, allowing for users to achieve fast and accurate measurements with their Chromium VI High Range Checker HC\u003c\/li\u003e\n\u003cli\u003eThese reagents follow the Diphenylcarbohydrazide Method in which the reaction between chromium VI and the reagent causes a purple tint in the sample. By simply adding the packet of HI-723-25 reagent to the sample, the reaction will take place and the HI-723 will determine the concentration from the colour that is produced.\u003c\/li\u003e\n\u003cli\u003eThe HI-723-25 are the replacement reagents for the HI-723 Chromium VI High Range Checker HC 25 Tests Sku: HI-723-25\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Hanna Instruments","offers":[{"title":"Default Title","offer_id":57213595222389,"sku":"HI-761-expiry 02\/25","price":60.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0574\/5511\/6439\/files\/total-chlorine-checker-ultra-low-range-0-to-500ppb_8fcb3958-ffee-4596-bf12-e7e71095333e.jpg?v=1779282009","url":"https:\/\/testallwater.co.uk\/products\/hanna-instruments-761-total-chlorine-ultra-low-range-handheld-colorimeter-checker-hc","provider":"Test All Water","version":"1.0","type":"link"}