检测和计数水中指示菌有两种基本方法:多管法,这种方法是将所测水样加到一些平行试管中,试管中有合适的液体培养基;另一方法是滤膜法,此法是将所测水样通过滤膜过滤器使细菌阻留于滤膜表面。不过必须看到,对于同一类微生物来说,用不同方法得到的结果不能够进行严格地比较。因此,为保证结果的可比性,应始终如一地使用同一种方法。 There are two basic methods for detecting and counting indicator bacteria in water: the multi-tube method. This method adds the measured water sample to some parallel tubes with a suitable liquid culture medium. The other method is the membrane method. France is the measured water through the filter membrane to filter bacteria in the filter surface. However, it must be observed that for the same class of microorganisms, the results obtained by different methods can not be compared strictly. Therefore, to ensure the comparability of results, the same method should be used consistently.