美利体育登录入口官网:DIN 38409-1:1987
德国检验水、废水和污泥的标准方法.气态组分(G组).说明作用和物质特性的参数(1H组).总干燥残渣、滤出干燥残渣和灼热后残渣的测定(H1)
German standard methods for the examination of water, waste water and sludge; parameters characterizing effects and substances (group H); determination of total dry residue, filtrate dry residue and residue on ignition (H 1)