{"product_id":"chlorine-free-total-test-kit-model-cn-66-color-disc-0-1-3-5-mg-l-100-tests","title":"Chlorine (Free \u0026 Total) Test Kit, Model CN-66, Color Disc, 0.1-3.5 mg\/L 100 Tests","description":"\u003cp\u003e\u003cstrong\u003eHACH® Chlorine (Free \u0026amp; Total) Test Kit, Model CN-66, Color Disc, 0.1-3.5 mg\/L 100 Tests, 223101\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFeatures:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe most widely used disinfectant for drinking water is chlorine and many other applications and industries\u003c\/li\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\u003eIts measurement and control are vital for both safety and economic reasons\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\u003cli\u003eAppearance:\n\u003cul\u003e\n\u003cli\u003eFree Chlorine Reagent: white powder\u003c\/li\u003e\n\u003cli\u003eTotal Chlorine Reagent: white to light pink powder\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eCAS Nos.:\n\u003cul\u003e\n\u003cli\u003eFree Chlorine Reagent:\n\u003cul\u003e\n\u003cli\u003eSodium Phosphate Dibasic: 7558-79-4 \u003c\/li\u003e\n\u003cli\u003eSalt of N,N-Diethyl-P-Phenylenediamine: N\/A\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eDisodium EDTA: 139-33-3 \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003eTotal Chlorine Reagent:\n\u003cul\u003e\n\u003cli\u003eSodium Phosphate Dibasic: 7558-79-4 \u003c\/li\u003e\n\u003cli\u003ePotassium Iodide: 7681-11-0 \u003c\/li\u003e\n\u003cli\u003eSalt of N,N-Diethyl-P-Phenylenediamine: N\/A\u003c\/li\u003e\n\u003cli\u003eGlycine, N,N-1,2-Ethanediylbis[N-(Carboxymethyl)-, Disodium Salt, Dihydrate: 6381-92-6 \u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ctable style=\"width: 85%;\" border=\"1\" cellspacing=\"0\" cellpadding=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMethod \/ Chemistry\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eRange (mg\/L)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eSmallest Increment (mg\/L)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eApprox. Number of Tests\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003eCase Style\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eColor Disc \/ DPD\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e0-3.5\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e0.1\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e50 free + 50 total\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e\n\u003cp\u003e8.3x2.6x5.75 inches Blue Polypropylene Carrying Case\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"HACH","offers":[{"title":"EA (1)","offer_id":51184811671867,"sku":"HAH-2231-01-EA","price":112.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0921\/2041\/6571\/files\/HAH-2231-01_1e935c32-2466-4168-ba42-68e90ad68efd.png?v=1784719195","url":"https:\/\/preiser.com\/products\/chlorine-free-total-test-kit-model-cn-66-color-disc-0-1-3-5-mg-l-100-tests","provider":"Preiser Scientific","version":"1.0","type":"link"}