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  • BS EN ISO 11731:2017

    Current The latest, up-to-date edition.

    Water quality. Enumeration of Legionella

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  26-06-2017

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    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

    Abstract - (Show below) - (Hide below)

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

    General Product Information - (Show below) - (Hide below)

    Committee EH/3/4
    Development Note Supersedes 15/30266279 DC. Supersedes BS EN ISO 11731-2, BS 6068-4.18(2004) and BS 6068-4.12(1998). (07/2017)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    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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