HJ 976-2018 in English

本标准规定了测定固体废物及其浸出液中苯系物的顶空/气相色谱-质谱法。
本标准适用于固体废物及其浸出液中苯、甲苯、乙苯、对-二甲苯、间-二甲苯、异丙苯、邻-二甲苯、正丙苯和苯乙烯等9种苯系物的测定。其它苯系物若通过验证，也可用本标准方法测定。

Scope

This standard specifies a headspace/gas chromatography-mass spectrometry method for the determination of benzene series in solid waste and its leachate. This standard is applicable to the determination of 9 benzene series compounds including benzene, toluene, ethylbenzene, p-xylene, m-xylene, cumene, o-xylene, n-propylbenzene and styrene in solid waste and its leachate. . If other benzene series substances pass the verification, they can also be measured by this standard method. When the solid waste sampling volume is 2 g, the detection limit of the method for the nine target substances is 3 to 5 mg/kg, and the lower determination limit is 12 to 20 mg/kg. When the solid waste leachate sampling volume is 10 ml, the method detection limit of the nine target substances is 0.6-1 mg/L, and the lower determination limit is 2.4-4 mg/L. See Appendix A for details. 2