1.1 This test method describes a membrane filter (MF) procedure for the detection and enumeration of Escherichia coli, a bacterium found exclusively in the feces of humans and other warm-blooded animals. The presence of these microorganisms in w
ASTM
Standard Test Method for Isolation and Enumeration ofEscherichia Coli in Water by the Two-Step Membrane Filter Procedure
STD-55469
1993
2006-07-01
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