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Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method for waters with low bacterial background flora
| 분야 | ISO/TC 147/SC 4 : Microbiological methods |
|---|---|
| 적용범위 | ISO 9308-1:2014 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. ISO 9308-1:2014 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. Some strains of E. coli which are β-D-glucuronidase negative, such as Escherichia coli O157, will not be detected as E. coli. As they are β-D-galactosidase positive, they will appear as coliform bacteria on this chromogenic agar. |
| 국제분류(ICS)코드 | 07.100.20 : 물의 미생물학 |
| 페이지수 | 10 |
| Edition | 3 |
| No. | 표준번호 | 표준명 | 발행일 | 상태 |
|---|---|---|---|---|
| 1 | ISO 9308-1:2014/Amd 1:2016 | Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method for waters with low bacterial background flora — Amendment 1 | 2016-12-08 | 표준 |
| 2 | ISO 9308-1:2014 | Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method for waters with low bacterial background flora | 2014-09-16 | 표준 |
| 3 | ISO 9308-1:2000/Cor 1:2007 | 2007-06-14 | 구판 | |
| 4 | ISO 9308-1:2000 | Water quality — Detection and enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method | 2000-09-21 | 구판 |
| 5 | ISO 9308-1:1990 | Water quality — Detection and enumeration of coliform organisms, thermotolerant coliform organisms and presumptive Escherichia coli — Part 1: Membrane filtration method | 1990-09-20 | 구판 |
ISO 9308-3:1998 - Water quality — Detection and enumeration of Escherichia coli and coliform bacteria — Part 3: Miniaturized method (Most Probable Number) for the detection and enumeration of E. coli in surface and waste water 상세보기
ISO 9308-3:1998/Cor 1:2000 - 상세보기
ISO 9308-2:2012 - Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 2: Most probable number method 상세보기
ISO 9308-1:2014/Amd 1:2016 - Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method for waters with low bacterial background flora — Amendment 1 상세보기
ISO 9308-1:2014/Amd 1:2016 - Water quality — Enumeration of Escherichia coli and coliform bacteria — Part 1: Membrane filtration method for waters with low bacterial background flora — Amendment 1 상세보기
ISO 9308-3:1998 - Water quality — Detection and enumeration of Escherichia coli and coliform bacteria — Part 3: Miniaturized method (Most Probable Number) for the detection and enumeration of E. coli in surface and waste water 상세보기
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