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Standard Test Method for Isolation and Enumeration of Escherichia coli in Water by the Two-Step Membrane Filter Procedure
Name übersetzen
NORM herausgegeben am 1.4.2019
Bezeichnung normen: ASTM D5392-19
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.4.2019
SKU: NS-945770
Zahl der Seiten: 6
Gewicht ca.: 18 g (0.04 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
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)
Significance and Use | ||||||||||
5.1 This test method is useful for measuring recreational water quality and chlorinated wastewaters, although it can be used for any water suspected of contamination by fecal wastes of warm-blooded animals. The significance of finding 5.2 Since small or large volumes of water or dilutions thereof can be analyzed by the MF technique, a wider range of levels of E. coli in water can be detected and enumerated than with other methods. |
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1. Scope | ||||||||||
1.1 This test method describes a membrane filter (MF) procedure for the detection and enumeration of 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 The values stated in SI units are to be regarded as standard. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use. 1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||
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