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I.S. EN ISO 11731:2017

Current

Current

The latest, up-to-date edition.

WATER QUALITY - ENUMERATION OF LEGIONELLA (ISO 11731:2017)

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-2017

Preview

For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

National Foreword
European foreword
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Apparatus and glassware
6 Culture media and reagents
7 Sampling
8 Procedure
9 Expression of results
10 Test report
11 Quality assurance
Annex A (informative) - Legionella species
Annex B (normative) - Culture media
Annex C (normative) - Diluents
Annex D (normative) - Acid solution
Annex E (informative) - Scraping or rubbing the
        bacteria from membrane filters
Annex F (informative) - Centrifugation technique
Annex G (informative) - Indirect immunofluorescent
        antibody assay for the identification of Legionella
        species
Annex H (informative) - Performance data
Annex I (informative) - Pre-treatment of water related
        matrices
Annex J (normative) - Decision matrix
Bibliography

Defines culture methods for the isolation of Legionella and estimation of their numbers in water samples.

DevelopmentNote
Supersedes I.S. EN ISO 11731-2. (07/2017)
DocumentType
Standard
Pages
56
PublisherName
National Standards Authority of Ireland
Status
Current
Supersedes

Standards Relationship
EN ISO 11731:2017 Identical
ISO 11731:2017 Identical

ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
ISO 7704:1985 Water quality — Evaluation of membrane filters used for microbiological analyses
ISO 19458:2006 Water quality Sampling for microbiological analysis
ISO 8199:2005 Water quality General guidance on the enumeration of micro-organisms by culture
ISO 13843:2017 Water quality — Requirements for establishing performance characteristics of quantitative microbiological methods
ISO 11133:2014 Microbiology of food, animal feed and water — Preparation, production, storage and performance testing of culture media
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods

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