ASTM-D5465 › Standard Practices for Determining Microbial Colony Counts from Waters Analyzed by Plating Methods
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Scope
1.1 These practices cover recommended procedures for counting colonies and reporting colony-forming units (CFU) on membrane filters (MF) and standard pour and spread plates.
1.2 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.
Keywords
calculating results; counting colonies; membrane filter methods; pour plate methods; reporting results; rounding off; significant figures; spread plate methods; verification of counts; 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-D5465-16R20
Revision Level
2016 R20 EDITION
Status
Current
Modification Type
Reapproval
Publication Date
July 8, 2020
Document Type
Practice
Page Count
5 pages
Committee Number
D19.24