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Norm
ÖNORM EN ISO 9308-1
Issue date: 2017 10 15
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration method for waters with low bacterial background flora (ISO 9308-1:2014 + Amd.1:2016) (consolidated version)
This part of ISO 9308 specifies a method for the enumeration of Escherichia coli (E. coli) and coliform
bacteria. The method is based on membrane filtration, subsequent ...
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Publisher:
Austrian Standards International
Format:
Digital | 16 Pages
Language:
German
| English
| Download GER/ENG
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ICS
This part of ISO 9308 specifies a method for the enumeration of Escherichia coli (E. coli) and coliform
bacteria. The method is based on membrane filtration, subsequent culture on a chromogenic coliform
agar medium, and calculation of the number of target organisms in the sample. Due to the low selectivity
of the differential agar medium, background growth can interfere with the reliable enumeration of
E. coli and coliform bacteria, for example, in surface waters or shallow well waters. This method is not
suitable for these types of water.
This part of ISO 9308 is especially suitable for waters with low bacterial numbers that will cause less
than 100 total colonies on chromogenic coliform agar (CCA). These may be drinking water, disinfected
pool water, or finished water from drinking water treatment plants.
ÖNORM EN ISO 9308-1
2017 10 15
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration ...
Norm
↖
ÖNORM EN ISO 9308-1
2014 12 01
Water quality - Enumeration of Escherichia coli and coliform bacteria - Part 1: Membrane filtration ...
Norm
ÖNORM EN ISO 9308-1
2009 06 01
Water quality - Detection and enumeration of Escherichia coli and coliform bacteria - Part 1: Membra...
Norm
ÖNORM EN ISO 9308-1
2001 06 01
Water quality - Detection and enumeration of Escherichia coli and coliform bacteria - Part 1: Membra...
Norm
Norm
ISO 3696:1987
Issue date :
1987 04 09
Water for analytical laboratory use — Specification and test methods
Norm
ISO 7704:1985
Issue date :
1985 03 14
Water quality — Evaluation of membrane filters used for microbiological analyses
Norm
ISO 8199:2018
Issue date :
2018 10 01
Water quality — General requirements and guidance for microbiological examinations by culture
Norm
ISO 11133:2014
Issue date :
2014 05 14
Microbiology of food, animal feed and water — Preparation, production, storage and performance testing of culture media (Corrected version 2014-10)
Norm
ISO 9308-1:2014
Issue date :
2014 09 16
Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method for waters with low bacterial background flora