HJ 621-2011 in English

本标准规定了测定水中氯苯类化合物的气相色谱法。
本标准适用于地表水、地下水、饮用水、海水、工业废水及生活污水中氯苯类化合物的测定。具体组分包括：氯苯、1,4-二氯苯、1,3-二氯苯、1,2-二氯苯、1,3,5-三氯苯、1,2,4-三氯苯、1,2,3-三氯苯
1,2,4,5-四氯苯、1,2,3,5-四氯苯、1,2,3,4-四氯苯、五氯苯和六氯苯等12 种。

Scope

Warning: The standard samples of chlorobenzene compounds, carbon disulfide, concentrated sulfuric acid, etc. used in this method are harmful to human health. During operation, protective equipment should be worn as required to avoid contact with skin and clothing. This standard specifies a gas chromatographic method for the determination of chlorobenzenes in water. This standard is applicable to the determination of chlorobenzene compounds in surface water, groundwater, drinking water, seawater, industrial wastewater and domestic sewage. Specific components include: chlorobenzene, 1,4-dichlorobenzene, 1.3-dichlorobenzene, 1,2-dichlorobenzene, 1,3,5-trichlorobenzene, 1,2,4-trichlorobenzene, 1,2,3-trichlorobenzene, 1,2,4,5-tetrachlorobenzene, 1,2,3,5-tetrachlorobenzene, 1,2,3,4-tetrachlorobenzene, chlorine-free benzene and 12 types of hexachlorobenzene. When the water sample is 1L and the volume is adjusted to 1.0ml, the method detection limit and lower determination limit are shown in Table 1. Table 1 is omitted.