DIN 38407-9-1991 德国检验水、废水和污泥的标准方法.第9部分:物质分组分析(F 组).用气相色谱分析方法对苯和某些衍生物的测定(F 9)
German standard methods for the examination of water, waste water and sludge; substance group analysis (group F); determination of benzene and some of its derivatives by gas chromatography (F 9)
The standard describes a chemical method for the determination of benzene and some derivatives in water and waste water. For the preparation of the water sample is used the steam chamber analysis or the extraction. The single substances are to determine after separation in a separation column by gas chromatography.