Hanna Instruments HI96738C Cal Check Chlorine Dioxide Portable Photometer Kit

Chlorine dioxide is used primarily as a disinfectant in drinking water and also in various industrial processes. In drinking water applications, it is gaining popularity over chlorine, considering that it does not generate trihalomethanes when reacting with organic compounds. In industrial applications, it is used as a bleaching agent in such applications as pulp and paper. Chlorine dioxide is a highly effective, microbiocide that carries a number of important regulatory approvals from several international organisations including the US EPA, FDA and UK Government for many of its uses. Chlorine and bromine react rapidly with microbiological species and chemicals in water. This reactivity is both their strength and weakness. Since chemical reactions are usually the first to take place, only the small residual of the product remaining after the chemical reaction is completed is available for microbiological control. Chlorine dioxide is a very safe and potent biocide. It is effective over a wide pH range in both hard and soft water and does not react with most other water treatment chemicals. User calibration. Certified calibration and verification standards. BEPS (battery error prevention system). Timer function. Auto shut-off. GLP Features. Range: 0.00 to 2.00 milligrams per liter. Resolution: 0.01 milligrams per liter. Accuracy: +/-0.10 milligrams per liter +/-5 percent of reading at 25 degree celsius. Light source: tungsten lamp. Light detector: silicon photocell with narrow band interference filter at 575 nm. Environment: 0 to 50 degree celsius (32 to 122 degree fahrenheit); RH max 95 percent non-condensing. Power supply: 9V battery. Auto-off: after 10 minutes of non-use in measurement mode; after 1 hour of non-use in calibration mode; with last reading reminder. Measures 7-19/32" length by 4-3/32" width by 2-11/16" height. Method: chlorophenol red method.