HJ 922-2017 in English

本标准规定了测定土壤和沉积物中多氯联苯的气相色谱法。
本标准适用于土壤和沉积物中7种指示性多氯联苯和12种共平面多氯联苯的测定。其他多氯联苯如果通过验证，也可采用本标准测定。

Scope

This standard specifies a gas chromatographic method for the determination of polychlorinated biphenyls in soil and sediments. This standard is applicable to the determination of 7 indicator PCBs and 12 coplanar PCBs in soil and sediments. Other PCBs can also be measured using this standard if they pass verification. When the sampling amount is 10.0g, the method detection limit of PCBs is 0.03μg/kg~0.07μg/kg, and the lower limit of determination is 0.12μg/kg~0.28μg/kg. See Appendix A for details.