Specifications HI3875 Free Chlorine (as Cl«) Type checker disc Range 0.0-3.5 mg/L (ppm) Smallest Increment 0.1 mg/L (ppm) Method DPD Number of Tests 100 avg. Ordering Information HI3875 test kit comes with HI93701-0 free Cl reagent (100 packets), 500 mL deionized water, checker disc, glass vials with caps (2) and 3 mL plastic pipette. Reagent HI3875-100 free chlorine, 100 tests avg. Specifications HI38018 Free Chlorine (as Cl«) Type checker disc Range 0.00-0.70 mg/L (ppm) 0.0-3.5 mg/L (ppm) Smallest Increment 0.02 mg/L (ppm) 0.1 mg/L (ppm) Method DPD Number of Tests 200 avg. Ordering Information HI38018 test kit comes with HI93701-0 free chlorine reagent (200 packets), demineralizer bottle with cap for 12 L, checker disc, glass vials with caps (2) and 3 mL plastic pipettes. Reagent HI38018-200 free chlorine, 200 tests avg. HI38018 Free Chlorine Test Kit Low and Medium Range with Checker® Disc The HI38018 is a chemical test kit that determines the free chlorine concentration in two ranges: 0.00 to 0.70 mg/L and 0.0 to 3.5 mg/L. The HI38018 is supplied with all of the necessary reagents and equipment to perform the analysis, including the Checker® disc for accurate determination. The test kit contains enough reagents for perform approximately 200 tests. • Complete setup · All required materials are included with the test kit, such as the glass vials, plastic pipette, reagent packets, and Checker® disc. • High resolution · Readings from 0.00 to 0.70 mg/L are determined to 0.02 mg/L resolution. · Readings from 0.0 to 3.5 mg/L are determined to 0.1 mg/L resolution. • Replacement reagents available · There is no need to buy a new kit when reagents are exhausted. The HI38018-200 can be ordered to replace the reagents supplied with the kit. Signicance of Use Disinfection is a process of killing disease-causing organisms (or pathogens). Chlorine (Cl«) is a very desirable disinfectant because, when mixed with pure water, it reacts to form hypochlorous acid (HOCl) and hydrochloric acid (HCl). HOCl (free active chlorine) is the most eective form of chlorine for disinfection of pools, spas, and drinking water. Drinking water municipalities add elemental chlorine to the water supply as chlorine gas, liquid sodium hypochlorite, or dry calcium hypochlorite. In water these form free chlorine ions, which destroy disease-causing pathogens, reduce odor, eliminate bacteria and help to remove unwanted elements. The USEPA requires that residual disinfectant is present in nished drinking water to ensure there is disinfectant available throughout the distribution system, with chlorine acting as one of the disinfectants that provides said residual. However, the EPA has also set a maximum contaminant level of 4.0 mg/L for free chlorine due to potential health eects above this level. Chemical test kit reagents begin on page 9.44 HI3875 Free Chlorine Test Kit Medium Range with Checker® Disc The HI3875 is a chemical test kit that determines the free chlorine concentration within a 0.0 to 3.5 mg/L (ppm) range. The HI3875 is supplied with all of the necessary reagents and equipment to perform the analysis, including the Checker<sup>®</sup> disc for accurate determination. The test kit contains enough reagents for perform approximately 100 tests. • Complete setup · All required materials are included with the test kit, such as the glass vials, plastic pipette, reagent packets, and Checker® disc. • High resolution · Readings from 0.0 to 3.5 mg/L are determined to 0.1 mg/L resolution. • Replacement reagents available · There is no need to buy a new kit when reagents are exhausted. The HI3875-100 can be ordered to replace the reagents supplied with the kit. Signicance of Use Disinfection is a process of killing disease-causing organisms (or pathogens). Chlorine (Cl«) is a very desirable disinfectant because, when mixed with pure water, it reacts to form hypochlorous acid (HOCl) and hydrochloric acid (HCl). HOCl (free active chlorine) is the most eective form of chlorine for disinfection of pools, spas, and drinking water. Drinking water municipalities add elemental chlorine to the water supply as chlorine gas, liquid sodium hypochlorite, or dry calcium hypochlorite. In water these form free chlorine ions, which destroy disease-causing pathogens, reduce odor, eliminate bacteria and help to remove unwanted elements. The USEPA requires that residual disinfectant is present in nished drinking water to ensure there is disinfectant available throughout the distribution system, with chlorine acting as one of the disinfectants that provides said residual. However, the EPA has also set a maximum contaminant level of 4.0 mg/L for free chlorine due to potential health eects above this level. 9 Chemical Test Kits 9.15 www.hannainst.com |
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