DIN 38414-20-1996
德国检验水、废水和污泥的标准方法.淤泥和沉积物(S组).第20部分:六多氯化二次苯基(PCB)的测定 (PCB) (S 20)
German standard methods for the examination of water, waste water and sludge - Sludge and sediments (group S) - Part 20: Determination of 6 polychlorinated biphenyls (PCB) (S 20)