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  • NEN EN ISO 6974-5 : 2014

    Current The latest, up-to-date edition.

    NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 5: ISOTHERMAL METHOD FOR NITROGEN, CARBON DIOXIDE, C1 TO C5 HYDROCARBONS AND C6+ HYDROCARBONS

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    Published date:  12-01-2013

    Publisher:  Netherlands Standards

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

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Principle
    4 Materials
    5 Apparatus
    6 Procedure
      6.1 Gas chromatographic operating conditions
      6.2 Calibration
      6.3 Performance requirements
          6.3.1 Peak resolution
          6.3.2 Chromatogram
      6.4 Determination
          6.4.1 Sample valve purge
          6.4.2 Analysis
    7 Expression of results
      7.1 Precision and accuracy
    8 Test report
    Annex A (informative) Procedure for setting valve timings
    and restrictor setting
    Annex B (informative) Typical precision values
    Bibliography

    Abstract - (Show below) - (Hide below)

    Explains a gas chromatographic method for the quantitative determination of the content of nitrogen, carbon dioxide and C1 to C5 hydrocarbons individually and a composite C6+ measurement, which represents all hydrocarbons of carbon number 6 and above in natural gas samples.

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

    Development Note Supersedes NEN ISO 6974-5. (03/2003)
    Document Type Standard
    Publisher Netherlands Standards
    Status Current
    Supersedes
    View more information

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