• I.S. EN ISO 15970:2014

    Current The latest, up-to-date edition.

    NATURAL GAS - MEASUREMENT OF PROPERTIES - VOLUMETRIC PROPERTIES: DENSITY, PRESSURE, TEMPERATURE AND COMPRESSION FACTOR (ISO 15970:2008)

    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 Symbols and units
    5 Density at reference conditions
    6 Density at operating conditions
    7 Pressure
    8 Temperature
    9 Compression factor
    Annex A (informative) - Guidance for instrument
            selection, instrument test and operational
            procedures
    Annex B (informative) - Instrument documentation
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides requirements and procedures for the measurement of the properties of natural gas that are used mainly for volume calculation and volume conversion: density at reference and at operating conditions, pressure, temperature and compression factor.

    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)

    IEC 60079-1:2014 RLV Explosive atmospheres - Part 1: Equipment protection by flameproof enclosures "d"
    ISO 10715:1997 Natural gas — Sampling guidelines
    IEC 60381-1:1982 Analogue signals for process control systems. Part 1: Direct current signals
    ISO 6976:2016 Natural gas — Calculation of calorific values, density, relative density and Wobbe indices from composition
    ISO 12213-3:2006 Natural gas Calculation of compression factor Part 3: Calculation using physical properties
    IEC 60770-2:2010 Transmitters for use in industrial-process control systems - Part 2: Methods for inspection and routine testing
    IEC 60079-11:2011 Explosive atmospheres - Part 11: Equipment protection by intrinsic safety "i"
    ISO 14532:2014 Natural gas — Vocabulary
    ISO/TR 9464:2008 Guidelines for the use of ISO 5167:2003
    ISO 5167-1:2003 Measurement of fluid flow by means of pressure differential devices inserted in circular cross-section conduits running full Part 1: General principles and requirements
    IEC 60079-0:2011 Explosive atmospheres - Part 0: Equipment - General requirements
    IEC 60751:2008 Industrial platinum resistance thermometers and platinum temperature sensors
    IEC 60079-14:2013 Explosive atmospheres - Part 14: Electrical installations design, selection and erection
    ISO 12213-1:2006 Natural gas Calculation of compression factor Part 1: Introduction and guidelines
    IEC 60381-2:1978 Analogue signals for process control systems. Part 2: Direct voltage signals
    ISO 2186:2007 Fluid flow in closed conduits — Connections for pressure signal transmissions between primary and secondary elements
    ISO 12213-2:2006 Natural gas Calculation of compression factor Part 2: Calculation using molar-composition analysis
    ISO 4006:1991 Measurement of fluid flow in closed conduits — Vocabulary and symbols
    EN 1776:2015 Gas infrastructure - Gas measuring systems - Functional requirements
    IEC 60770-1:2010 Transmitters for use in industrial-process control systems - Part 1: Methods for performance evaluation
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