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)