German standard methods for the examination of water, waste water and sludge - Microbiological methods (group K) - Part 9: Determination of enterobacterial common antigen (ECA) for the detection of lactose-fermenting enterobacteriaceae (K 9)
德国水、废水和污泥检验标准方法微生物法(K组)第9部分:检测乳糖发酵肠杆菌科(K 9)的肠杆菌共同抗原(ECA)的测定