DIN 38402-42:1984 水、废水和淤泥的德国标准检验法 一般信息(A组) 第42部分:验证和评定方法的实验室间试验(A 42)
German standard methods for the examination of water, waste water and sludge - General informations (group A) - Part 42: Interlaboratory trials for method validation, evaluation (A 42)