NF T90-431:2014
Water quality - Detection and enumeration of Legionella spp and Legionella pneumophilia - Method by direct inoculation and after concentration by membrane filtration of centrifugation

Standard No.

NF T90-431:2014

Release Date

2014

Published By

Association Francaise de Normalisation

Latest

NF T90-431:2014

Replace

NF T90-431:2003

Scope

This document specifies a method for is lating and enumerating Legionella including Legionella pneumophila in waters.

NF T90-431:2014 Referenced Document

• ISO 19458 Water quality - Sampling for microbiological analysis
• ISO 7704 Water quality — Requirements for the performance testing of membrane filters used for direct enumeration of microorganisms by culture methods*， 2023-01-12 Update
• ISO 8199 Water quality - General requirements and guidance for microbiological examinations by culture*， 2018-09-30 Update

NF T90-431:2014 history

• 2014 NF T90-431:2014 Water quality - Detection and enumeration of Legionella spp and Legionella pneumophilia - Method by direct inoculation and after concentration by membrane filtration of centrifugation
• 2003 NF T90-431:2003 Water quality - Detection and enumeration of Legionella spp and Legionella pneumophilia - Method by direct inoculation and after concentration by membrane filtration of centrifugation.