{"product_id":"chlorine-free-total-test-kit-model-cn-70-color-disc-100-tests","title":"Chlorine (Free \u0026 Total) Test Kit, Model CN-70, Color Disc, 100 Tests","description":"The most widely used disinfectant for drinking water is chlorine. Chlorine is also important for sanitizing swimming pools, cooling towers, other industrial equipment, and in the treatment of municipal wastewater. Its measurement and control are vital for both safety and economic reasons.  Features\u003cul\u003e\n\u003cli\u003eChlorine test kits containing DPD colorimetric reagent are used most often for monitoring potable water, swimming pools, and waste effluent.\u003c\/li\u003e\n\u003cli\u003ePowder DPD reacts with chlorine more quickly than tablet-form DPD, giving more accurate results.\u003c\/li\u003e\n\u003cli\u003ePowder DPD also has a considerable advantage over orthotolidine, a hazardous substance sometimes used as a chlorine test reagent.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ctable style=\"width: 359px;\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\u003ctr valign=\"top\"\u003e\u003ctd valign=\"top\"\u003e\u003ctable style=\"border-collapse: collapse; width: 457px; height: 121px;\" x:str=\"\" border=\"0\" cellspacing=\"0\" cellpadding=\"0\"\u003e\u003ctbody\u003e\n\u003ctr style=\"height: 38.25pt;\" height=\"51\"\u003e\n\u003ctd class=\"xl27\" style=\"border: 0.5pt solid windowtext; width: 64pt; height: 38.25pt; background-color: #ffffff;\"\u003e\u003cp style=\"background-color: #ffffff;\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003eMethod \/ Chemistry\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl27\" style=\"border-style: solid solid solid none; border-color: windowtext; border-width: 0.5pt 0.5pt 0.5pt medium; width: 65pt; background-color: #ffffff;\"\u003e\u003cp style=\"background-color: #ffffff;\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003eRange (mg\/L)\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl27\" style=\"border-style: solid solid solid none; border-color: windowtext; border-width: 0.5pt 0.5pt 0.5pt medium; width: 79pt; background-color: #ffffff;\"\u003e\u003cp style=\"background-color: #ffffff;\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003eSmallest Increment (mg\/L)\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl27\" style=\"border-style: solid solid solid none; border-color: windowtext; border-width: 0.5pt 0.5pt 0.5pt medium; width: 63pt; background-color: #ffffff;\"\u003e\u003cp style=\"background-color: #ffffff;\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003eApprox. Number of Tests\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl27\" style=\"border-style: solid solid solid none; border-color: windowtext; border-width: 0.5pt 0.5pt 0.5pt medium; width: 79pt; background-color: #ffffff;\"\u003e\u003cp style=\"background-color: #ffffff;\" align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003eCase Style\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 26.25pt;\" height=\"35\"\u003e\n\u003ctd class=\"xl26\" style=\"border-style: none solid solid; border-color: windowtext; border-width: medium 0.5pt 0.5pt; width: 64pt; height: 51.75pt; background-color: transparent;\" rowspan=\"2\" width=\"85\" height=\"69\"\u003e\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003eColor Disc \/ DPD\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl26\" style=\"border-style: none solid solid none; border-color: windowtext; border-width: medium 0.5pt 0.5pt medium; width: 65pt; background-color: transparent;\" width=\"87\"\u003e\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003e0-0.7\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl28\" style=\"border-style: none solid solid none; border-color: windowtext; border-width: medium 0.5pt 0.5pt medium; background-color: transparent;\" x:num=\"00.02\" align=\"right\"\u003e\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003e0.02\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl29\" style=\"border-style: none solid solid; border-color: windowtext windowtext black; border-width: medium 0.5pt 0.5pt; background-color: transparent;\" rowspan=\"2\" x:num=\"\" align=\"right\"\u003e\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003e100\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl26\" style=\"border-style: none solid solid; border-color: windowtext; border-width: medium 0.5pt 0.5pt; width: 79pt; background-color: transparent;\" rowspan=\"2\" width=\"105\"\u003e\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003e8.8x6.5x5.8 inches Blue Polypropylene Carrying Case\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 25.5pt;\" height=\"34\"\u003e\n\u003ctd class=\"xl25\" style=\"border-style: none solid solid none; border-color: windowtext; border-width: medium 0.5pt 0.5pt medium; width: 65pt; height: 25.5pt; background-color: transparent;\" width=\"87\" height=\"34\"\u003e\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003e0-3.5\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003ctd class=\"xl24\" style=\"border-style: none solid solid none; border-color: windowtext; border-width: medium 0.5pt 0.5pt medium; background-color: transparent;\" x:num=\"00.1\" align=\"right\"\u003e\u003cp align=\"center\"\u003e\u003cspan style=\"font-family: Arial; font-size: small;\" face=\"Arial\"\u003e0.1\u003c\/span\u003e\u003c\/p\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003c\/td\u003e\u003c\/tr\u003e\n\u003ctr\u003e\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e","brand":"HACH","offers":[{"title":"EA (1)","offer_id":51111560642875,"sku":"HAH-14542-00-EA","price":148.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/HAH-14542-00_344efae3-4909-4087-b6bf-22e6cd16a89b.png?v=1784719051","url":"https:\/\/preiser.com\/products\/chlorine-free-total-test-kit-model-cn-70-color-disc-100-tests","provider":"Preiser Scientific","version":"1.0","type":"link"}