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  • DIN EN ISO 6974-1 E : 2012

    Current The latest, up-to-date edition.

    NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 1: GENERAL GUIDELINES AND CALCULATION OF COMPOSITION (ISO 6974-1:2012)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2012

    Publisher:  German Institute for Standardisation (Deutsches Institut für Normung)

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

    National foreword
    National Annex NA (informative) - Bibliography
    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Symbols
    5 Principles of analysis
    6 Analytical procedure
    7 Control chart
    8 Test report
    Annex A (informative) - Comparative application ranges and
            characteristics of analytical methods described in
            ISO 6974-3 to ISO 6974-6
    Annex B (informative) - Alternative approach to bridging and
            normalization
    Annex C (informative) - Methane-by-difference approach
    Annex D (normative) - Relative response factors
    Annex E (informative) - Testing for outliers
    Annex F (normative) - Pressure correction during calibration and
            sample analysis
    Annex G (informative) - Software suitable for generalized least
            squares regression analysis
    Annex H (informative) - Use of control charts
    Bibliography

    Abstract - (Show below) - (Hide below)

    Provides methods for calculating component mole fractions of natural gas and specifies the data processing requirements for determining component mole fractions.

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

    Document Type Standard
    Publisher German Institute for Standardisation (Deutsches Institut für Normung)
    Status Current

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

    DIN EN ISO 6974-3 E : 2002 NATURAL GAS - DETERMINATION OF COMPOSITION WITH DEFINED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 3: DETERMINATION OF HYDROGEN, HELIUM, OXYGEN, NITROGEN, CARBON DIOXIDE AND HYDROCARBONS UP TO C[8] USING TWO PACKED COLUMNS
    DIN EN ISO 6974-6 E : 2005 NATURAL GAS - DETERMINATION OF COMPOSITION WITH DEFINED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 6: DETERMINATION OF HYDROGEN, HELIUM, OXYGEN, NITROGEN, CARBON DIOXIDE AND C[1] TO C[8] HYDROCARBONS USING THREE CAPILLARY COLUMNS
    DIN EN ISO 6974-2 E : 2012 NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 2: UNCERTAINTY CALCULATIONS (ISO 6974-2:2012)
    DIN EN ISO 6974-4:2002-06 NATURAL GAS - DETERMINATION OF COMPOSITION WITH DEFINED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 4: DETERMINATION OF NITROGEN, CARBON DIOXIDE AND C[1] TO C[5] AND C[6+] HYDROCARBONS FOR A LABORATORY AND ON-LINE MEASURING SYSTEM USING TWO COLUMNS
    DIN EN ISO 10723:2013-04 NATURAL GAS - PERFORMANCE EVALUATION FOR ANALYTICAL SYSTEMS (ISO 10723:2012)
    DIN EN ISO 6974-4 E : 2002 NATURAL GAS - DETERMINATION OF COMPOSITION WITH DEFINED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 4: DETERMINATION OF NITROGEN, CARBON DIOXIDE AND C[1] TO C[5] AND C[6+] HYDROCARBONS FOR A LABORATORY AND ON-LINE MEASURING SYSTEM USING TWO COLUMNS
    DIN EN ISO 6974-5 E : 2002 NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 5: ISOTHERMAL METHOD FOR NITROGEN, CARBON DIOXIDE, C[1] TO C[5] HYDROCARBONS AND C[6+] HYDROCARBONS (ISO 6974-5:2014)
    DIN EN ISO 6974-6:2005-08 Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C<(Index)1> to C<(Index)8> hydrocarbons using three capillary columns (ISO 6974-6:2002)
    DIN EN ISO 6974-5:2002-06 NATURAL GAS - DETERMINATION OF COMPOSITION AND ASSOCIATED UNCERTAINTY BY GAS CHROMATOGRAPHY - PART 5: ISOTHERMAL METHOD FOR NITROGEN, CARBON DIOXIDE, C[1] TO C[5] HYDROCARBONS AND C[6+] HYDROCARBONS (ISO 6974-5:2014)

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

    ISO 5725-1:1994 Accuracy (trueness and precision) of measurement methods and results — Part 1: General principles and definitions
    ISO 10715:1997 Natural gas — Sampling guidelines
    ISO 6974-6:2002 Natural gas Determination of composition with defined uncertainty by gas chromatography Part 6: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and C1 to C8 hydrocarbons using three capillary columns
    ISO 6974-2:2012 Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 2: Uncertainty calculations
    ISO 6974-4:2000 Natural gas — Determination of composition with defined uncertainty by gas chromatography — Part 4: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns
    ISO 10723:2012 Natural gas Performance evaluation for analytical systems
    ISO 16664:2017 Gas analysis — Handling of calibration gases and gas mixtures — Guidelines
    ISO 6974-3:2000 Natural gas Determination of composition with defined uncertainty by gas chromatography Part 3: Determination of hydrogen, helium, oxygen, nitrogen, carbon dioxide and hydrocarbons up to C8 using two packed columns
    ISO Guide 35:2017 Reference materials Guidance for characterization and assessment of homogeneity and stability
    ISO/IEC Guide 99:2007 International vocabulary of metrology Basic and general concepts and associated terms (VIM)
    ISO 6143:2001 Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures
    ISO 6142:2001 Gas analysis Preparation of calibration gas mixtures Gravimetric method
    ISO 5725-2:1994 Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
    ISO 5479:1997 Statistical interpretation of data — Tests for departure from the normal distribution
    ISO Guide 31:2015 Reference materials — Contents of certificates, labels and accompanying documentation
    ISO 6974-5:2014 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
    ISO Guide 34:2009 General requirements for the competence of reference material producers
    ISO/IEC Guide 98-3:2008 Uncertainty of measurement — Part 3: Guide to the expression of uncertainty in measurement (GUM:1995)
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