EN 26461-2:1993
Current
The latest, up-to-date edition.
Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration (ISO 6461-2:1986)
25-01-1993
Cooperating organizations
National foreword
Foreword
0. Introduction
1. Scope
2. Field of application
3. References
4. Definition
5. Principle
6. Culture media and reagents
7. Apparatus and glassware
8. Sampling
9. Procedure
10. Expression of results
11. Test report
National annexes
NA (informative) Committees responsible
NB (informative) Cross-references
The procedure is applicable to all types of water, except when a large amount of particulate material is liable to be retained by the membrane. The principle covers several steps from selection by applying heat to destroy vegetative bacteria to filtration of the water sample through a membrane filter having a suitable pore size (0,2 µm) to retain the spores in or on it. The filter is placed on a selective culture medium, followed by incubation and counting of black colonies.
| Committee |
CEN/TC 230
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| NF EN 26461-2 : 1993 | Identical |
| ISO 6461-2:1986 | Identical |
| NBN EN 26461-2 : 1993 | Identical |
| NS ISO 6461-2 : 1ED 1993 | Identical |
| I.S. EN 26461-2:1993 | Identical |
| PN EN 26461-2 : 2001 | Identical |
| SNV DIN EN 26461-2 : 1993 | Identical |
| UNI EN 26461-2 : 1994 | Identical |
| BS 6068-4.9(1993) : 1993 | Identical |
| BS EN 26461-2:1993 | Identical |
| UNE-EN 26461-2:1995 | Identical |
| DIN EN 26461-2:1993-04 | Identical |
| ISO 7704:1985 | Water quality — Evaluation of membrane filters used for microbiological analyses |
| ISO 5667-2:1991 | Water quality Sampling Part 2: Guidance on sampling techniques |
| ISO 8199:2005 | Water quality General guidance on the enumeration of micro-organisms by culture |
| ISO 5667-3:2012 | Water quality Sampling Part 3: Preservation and handling of water samples |
| ISO 3696:1987 | Water for analytical laboratory use — Specification and test methods |
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