Norm

NEN-ISO 6461-2:1993 en

Water - Detectie en telling van de sporen van sulfietreducerende anaerobe micro-organismen (clostridia) - Deel 2: Methode door middel van membraanfiltratie

31,57

Over deze norm

Status Definitief
Aantal pagina's 3
Commissie Microbiologische parameters
Gepubliceerd op 01-08-1993
Taal Engels
The spores of sulfite-reducing anaerobes (clostridia) are widespread in the environment. They are present in human and animal faecal matter, in waste watter and in soil. Unlike Escherichia coli and other coliform organisms, the spores survive in water for long periods as they are more resistant than vegetative forms to the action of chemical and physical factors. They may thus give an indication of remote or intermittent pollution. They may even be resistance to chlorination at levels which are normally used for the treatment of water, and they are thus useful for control purposes. The method can be used to all types of water, except when a large amount of particulate material is liable to be retained by the membrane.

Details

ICS-code 07.100.20
13.060.70
Nederlandse titel Water - Detectie en telling van de sporen van sulfietreducerende anaerobe micro-organismen (clostridia) - Deel 2: Methode door middel van membraanfiltratie
Engelse titel Water quality - Detection and enumeration of the spores of sulfitereducing anaerobes (clostridia) - Part 2: Method by membrane filtration
Vervangt

Winkelwagen

Subtotaal:

Ga naar winkelwagen