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    I.S. EN ISO 15971:2014

    Current The latest, up-to-date edition.

    NATURAL GAS - MEASUREMENT OF PROPERTIES - CALORIFIC VALUE AND WOBBE INDEX (ISO 15971:2008)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2014

    Publisher:  National Standards Authority of Ireland

    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.

    Dates of withdrawal of national standards are available from NSAI.

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Principles of measurement
    5 Performance assessment and acceptance tests
    6 Sampling and installation guidelines
    7 Calibration
    8 Verification
    9 Maintenance
    10 Quality control
    Annex A (normative) - Symbols and units
    Annex B (informative) - Examples of type-approval and
            technical specifications
    Annex C (informative) - Class 0 mass-basis calorimetry
    Annex D (informative) - Direct combustion calorimetry
    Annex E (informative) - Stoichiometric combustion devices
    Annex F (informative) - Effect of non-alkane gases on
            stoichiometric combustion devices
    Annex G (informative) - Measurement of Wobbe index
    Bibliography

    Abstract - (Show below) - (Hide below)

    Specifies the measurement of calorific value of natural gas and natural gas substitutes by non-separative methods, i.e. methods that do not involve the determination of the gas composition, nor calculations from it.

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

    Document Type Standard
    Publisher National Standards Authority of Ireland
    Status Current

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

    ISO 10715:1997 Natural gas — Sampling guidelines
    IEC 61000-6-4:2006+AMD1:2010 CSV ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-4: GENERIC STANDARDS - EMISSION STANDARD FOR INDUSTRIAL ENVIRONMENTS
    ISO 6976:2016 Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
    ISO/IEC Guide 98:1993 Guide to the expression of uncertainty in measurement (GUM)
    IEC 61000-6-1 : 3.0 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-1: GENERIC STANDARDS - IMMUNITY STANDARD FOR RESIDENTIAL, COMMERCIAL AND LIGHT-INDUSTRIAL ENVIRONMENTS
    ISO 5725-6:1994 Accuracy (trueness and precision) of measurement methods and results — Part 6: Use in practice of accuracy values
    IEC 61000-6-3:2006+AMD1:2010 CSV Electromagnetic compatibility (EMC) - Part 6-3: Generic standards - Emission standard for residential, commercial and light-industrial environments
    ISO 14532:2014 Natural gas — Vocabulary
    ISO 13443:1996 Natural gas Standard reference conditions
    ISO 6142:2001 Gas analysis Preparation of calibration gas mixtures Gravimetric method
    ISO 14111:1997 Natural gas — Guidelines to traceability in analysis
    ISO 6145-1:2003 Gas analysis Preparation of calibration gas mixtures using dynamic volumetric methods Part 1: Methods of calibration
    IEC 61000-6-2 : 3.0:2016 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY STANDARD FOR INDUSTRIAL ENVIRONMENTS
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