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ILNAS-EN 26461-2:1993 Edition 01/1993
Water quality - Detection and enumeration of the spores of sulfite-reducing anaerobes (clostridia) - Part 2: Method by membrane filtration (ISO 6461-2:1986)
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Abstract

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.

Status

Standard - Active

Origin

Technical Committee :
CEN/TC 230 : Water analysis

Implementation

start of the vote on the project    15/05/1991   date of ratification (dor)    20/01/1993
end of the vote on the project    15/10/1991   date of anouncement (doa)    30/04/1993
start of the vote on the final project    10/06/1992   date of publication (dop)    31/07/1993
end of the vote on the final project    10/08/1992   date of withdrawal (dow)    31/07/1993


Publication Official Journal
of the Grand-Duchy of Luxembourg
08/06/1994
Reference

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International Classification for Standards (ICS codes) :

13.060.30 : Sewage water

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