HJ 620-2011 in English

本标准规定了测定水中挥发性卤代烃的顶空气相色谱法。
本标准适用于地表水、地下水、饮用水、海水、工业废水和生活污水中挥发性卤代烃的测定。具体组分包括1,1-二氯乙烯、二氯甲烷、反式-1,2-二氯乙烯、氯丁二烯、顺式-1,2-二氯乙烯、三氯甲烷、四氯化碳、1,2-二氯乙烷、三氯乙烯、一溴二氯甲烷、四氯乙烯、二溴一氯甲烷、三溴甲烷、六氯丁二烯等14 种。其他挥发性卤代烃通过验证后，也可以使用本方法进行测定。

Scope

Warning: The volatile halogenated hydrocarbon standard sample used in this method is harmful to human health. Protective equipment should be worn as required during operation and avoid contact with skin and clothing. This standard specifies a headspace gas chromatography method for the determination of volatile halogenated hydrocarbons in water. This standard is applicable to the determination of volatile halogenated hydrocarbons in surface water, groundwater, drinking water, seawater, industrial wastewater and domestic sewage. Specific components include 1,1-dichloroethylene, dichloromethane, trans-1,2-dichloroethylene, chloroprene, cis-1,2-dichloroethylene, chloroform, tetrachloride 14 types of carbon, 1,2-dichloroethane, trichloroethylene, bromodichloromethane, tetrachloroethylene, dibromochloromethane, tribromomethane, and hexachlorobutadiene. After other volatile halogenated hydrocarbons pass verification, this method can also be used for determination. When the headspace bottle is 22ml and the sampling volume is 10.0ml, the method detection limit of the above target compound is 0.02~6.13μg/L, and the lower limit of determination is 0.08~24.5μg/L. See Appendix A for details.