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  • BS 8496:2007

    Current The latest, up-to-date edition.

    Water quality. Enumeration of micro-organisms in water samples. Guidance on the estimation of variation of results with particular reference to the contribution of uncertainty of measurement

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  31-01-2007

    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 General
    5 Procedure
    Annexes
    Annex A (informative) Worked examples
    Bibliography
    List of figures
    List of tables

    Abstract - (Show below) - (Hide below)

    Provides guidance on interpretation of the requirements specified in BS EN ISO/IEC 17025:2005 with regard to the uncertainty of measurement in microbial counts in water samples.

    Scope - (Show below) - (Hide below)

    This British Standard gives guidance on interpretation of the requirements specified in BS EN ISO/IEC 17025:2005 with regard to the uncertainty of measurement in microbial counts in water samples. It gives guidance on the estimation of variation in results between replicate sub-samples, which will include that due to uncertainty of measurement, in order to assess whether the variation due to uncertainty of measurement has been controlled in accordance with the requirements specified in BS EN ISO/IEC 17025:2005. It is applicable to examination of sub-samples as part of a quality assurance system. It is applicable to samples of all types of water.

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    Committee EH/3/4
    Development Note Supersedes BS DD260(2003). (01/2007) Reviewed and confirmed by BSI, October 2012. (09/2012)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referenced By This Book - (Show below) - (Hide below)

    ISO 29201:2012 Water quality — The variability of test results and the uncertainty of measurement of microbiological enumeration methods

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

    BS ISO 6107-8:1993 Water quality. Vocabulary Part 8
    BS ISO 3534-1:2006 Statistics. Vocabulary and symbols General statistical terms and terms used in probability
    BS ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results General principles and definitions
    BS EN ISO/IEC 17025:2005 General requirements for the competence of testing and calibration laboratories
    BS PD6532-1(1993) : 1993 REFERENCE MATERIALS - GUIDE TO TERMS AND DEFINITIONS USED IN CONNECTION WITH REFERENCE MATERIALS
    DD ENV ISO/TR 13843:2001 Water quality. Guidance on validation of microbiological methods
    DD ENV ISO 11133-1:2000 Microbiology of food and animal feeding stuffs. Guidelines on quality assurance and performance testing of culture media General guidelines on quality assurance of culture media in the laboratory
    BS ISO 8199 : 2005 WATER QUALITY - GENERAL GUIDANCE ON THE ENUMERATION OF MICRO-ORGANISMS BY CULTURE
    BS EN ISO 17994:2014 Water quality. Requirements for the comparison of the relative recovery of microorganisms by two quantitative methods
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