ISO 14189:2013规定了一种通过膜过滤法对拟供人饮用的水样中产气荚膜梭菌营养细胞和孢子进行计数的方法。然而，该方法可应用于所有类型的水样，只要它们不含干扰过滤的颗粒或胶体物质。

ISO 14189:2013 specifies a method for the enumeration of vegetative cells and spores of Clostridium perfringens by the membrane filtration method in samples of water intended for human consumption. However, the method can be applied to all types of water samples provided they do not contain particulate or colloidal matter that interferes with filtration.