ASTM-D5392 › Historical Revision Information
Standard Test Method for Isolation and Enumeration of Escherichia Coli in Water by the Two-Step Membrane Filter Procedure
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Scope
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 water is an indication of fecal pollution and the possible presence of enteric pathogens. These bacteria are found in water and wastewater in a wide range of densities. The detection limit of this procedure is one colony forming unit (CFU) per volume filtered.
1.2 This test method has been used successfully with temperate fresh and marine ambient waters, and wastewaters. It is the user's responsibility to ensure the validity of this test method for waters of other types.
1.3 This standard does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. For specific hazard statements, see Section 9.
Keywords
ambient waters; Escherichia coli; fecal pollution; mTEC agar; recreational waters; two-step membrane filter method; wastewaters; ICS Number Code 07.100.20 (Microbiology of water)
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07.100.20 (Microbiology of water Examination of biological properties of water, see 13.060.70)
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Document Number
ASTM-D5392-93(2000)
Revision Level
1993 R00 EDITION
Status
Superseded
Modification Type
Reapproval
Publication Date
April 15, 1993
Document Type
Test Method
Page Count
5 pages
Committee Number
D19.24