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氯化物几乎存在于所有的原水和饮用水中，饮用水中的氯化物主要来源于原水，氯化物含量过高对配水系统会产生腐蚀，因此，测定氧化物的含量具有一定的意义。《地面水环境质量标准》GB（3838-88）和《生活饮用水卫生标准》GB（5749-85）都把氯化物作为一项检测项目。下面对Hg（N
Chloride is found in almost all raw and potable water. Chloride in drinking water is mainly derived from raw water. Too high chloride content can cause corrosion in the water distribution system. Therefore, it is of significance to measure the content of oxides. Chloride is used as a test item in Ground Water Environmental Quality Standard GB (3838-88) and Drinking Water Health Standard GB (5749-85). The following Hg (N