Chlorine refers to chlorine water after contact with chlorine disinfectant Group predetermined time, remaining in the water. Chlorine has three forms: 1. Total Chlorine: Includes free residual chlorine and compounds of chlorine. 2. Free Chlorine: including HOCl and OCl- so on. 3. Residual chlorine compounds include: NH2Cl, NHCl2, NCl3 chloramines and other compounds. Role is to ensure continuous chlorine disinfection, but also prevents water from being contaminated again. However, if the amount of excessive chlorine, taste and odor may aggravate water and other organic produce phenol, chloroform, etc. may also generate the "three letter" role of chlorinated organic matter. Determination of residual chlorine in water content and presence of good drinking water disinfection and hygiene ensure safety is extremely important. Many determination of residual chlorine. 1. Application ⑴. Were measured in drinking water, water, water, wastewater and seawater of free chlorine, total chlorine and compounds of chlorine. ⑵. Colored or turbid water samples can be used as a blank zero to counteract its effects. ⑶. Law highest detected concentration of 4.5mg / l chlorine. Bazhou Hua Yi Yijing Environmental Protection Technology Co., Ltd. Website: www.hyyjhb.com Contact: Li Zhigang Phone: 18632603988 landline: 0316-6910071 QQ: 753498893 E-mail: 753498893@qq.com Address: Bazhou Economic Development Yashima Network finishing release