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ISO 11731:2017

Water quality — Enumeration of Legionella

May 12, 2017

General information

90.93     Sep 19, 2022

ISO

ISO/TC 147/SC 4

International Standard

07.100.20  

English   French  

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Scope

ISO 11731:2017 specifies culture methods for the isolation of Legionella and estimation of their numbers in water samples.
These methods are applicable to all kinds of water samples including potable, industrial, waste and natural waters. These methods can be used for water related matrices, e.g. biofilms, sediments, etc.
Not all Legionella species are culturable; therefore, the methods described in this document do not recover all species of Legionella.

Life cycle

PREVIOUSLY

Revises
ISO 11731:1998

Revises
ISO 11731-2:2004

NOW

PUBLISHED
ISO 11731:2017
90.93 Standard confirmed
Sep 19, 2022

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