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AS/NZS 4276.7:2007

AS/NZS 4276.7:2007

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Water microbiology - Escherichia coli and thermotolerant coliforms - Membrane filtration method

Available format(s)

Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

03-07-2019

Language(s)

English

Published date

03-20-2007

Publisher

Standards Australia

This Standard sets out a method, using membrane filtration, for enumerating Escherichia coli (E. coli) and thermotolerant coliforms in water other than packaged water. Where waters are expected to contain low to moderate numbers of background bacteria, use of membrane lauryl sulfate agar or broth (m-LS) is recommended as the primary isolation medium. Where waters have a likelihood of containing high numbers of background microrganisms (e.g. some ambient untreated waters, effluent waters), this Standard includes the option to employ an alternative selective agar or broth (m-FC) that is generally more inhibitory and can be expected to a greater extent to restrict the number and size of background colonies. 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 A flow diagram of the procedure is shown in Appendix A.

Committee
FT-020
DocumentType
Standard
ISBN
0 7337 8110 1
Pages
7
PublisherName
Standards Australia
Status
Superseded
SupersededBy
Supersedes

First published as AS 1095.4.1.6-1981.Revised and redesignated AS 4276.7-1995.Jointly revised and designated as AS/NZS 4276.7:2007. Originated as AS 1095.4.1.6-1981. Previous edition AS 4276.7-1995. Jointly revised and designated as AS/NZS 4276.5:2007.

AS/NZS 4276.1:2007 Water microbiology General information and procedures (ISO 8199:2005, MOD)

AS 3979-2006 Hydrotherapy pools (Reconfirmed 2018)

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Hardcopy - English
PDF 1 User - English
PDF 3 Users - English
PDF 5 Users - English
PDF 9 Users - English
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