DIN 38402-51-2015 檢查水, 廢水和污泥的德國標準方法. 通用信息 (A組). 第51部分: 分析方法的校準. 線性定標 (A 51)
German standard methods for the examination of water, waste water and sludge - General information (group A) - Part 51: Calibration of analytical methods - Linear calibration (A 51)