AS/NZS 4276.5:2007
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Water microbiology - Coliforms - Membrane filtration method
Hardcopy , PDF 1 User , PDF 3 Users , PDF 5 Users , PDF 9 Users
07-03-2019
English
20-03-2007
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
FT-020
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| DocumentType |
Standard
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| ISBN |
0 7337 8108 X
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| Pages |
9
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| PublisherName |
Standards Australia
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
This Standard sets out a method, using membrane filtration, for enumerating 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 (m-LS agar) is recommended as the primary isolation medium. Where waters have a likelihood of containing high numbers of background microorganisms (e.g. some ambient untreated waters, untreated drinking waters), this Standard includes the option to employ an alternative selective agar or broth (m-Endo medium) that is generally more inhibitory and can be expected to a greater extent to restrict the number and size of background colonies.NOTES:1 Membrane filtration is suitable for enumerating microorganisms only when the turbidity of the water is low.2 A flow diagram of the procedure is shown in Appendix A.
Originated as AS 1095.4.1.5-1981.
Previous edition AS 4276.5-1995.
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) |
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