DIN 38402-30:1998-07 德国水、废水和污泥检验标准方法 - 一般信息(A 组) - 第 30 部分:非均质水样的预处理、均质化和等分 (A 30)
German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 30: Pretreatment, homogenization and aliquotation of non-homogeneous water samples (A 30)