AS 4276.7-1995被替代
Water microbiology Thermotolerant coliforms and Escherichia coli - Membrane filtration method
出版：Standards Australia
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基本信息
標準編號： AS 4276.7-1995
發布時間：1995/3/5 0:00:00
標準類別：Standard
出版單位：Standards Australia
標準頁數：5
標準簡介
This Standard sets out a method, using membrane filtration, for enumerating thermotolerant coliforms and Escherichia coli in water.NOTES:1 Thermotolerant coliforms are often also referred to as 'faecal coliforms' although the organisms may not be of faecal origin.2 Membrane filtration is suitable for enumerating microorganisms only when the turbidity of the water is low.3 Bacterial counts derived from membranes with fewer than 20 or more than 80 thermotolerant coliform colonies are approximate.4 A flow diagram of the procedure is shown in Appendix A.
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