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Publications of CEN/TC 238

DIN EN ISO 6974-3 2019-02 Standards Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 3: Precision and bias (ISO 6974-3:2018); German version EN ISO 6974-3:2018 More  Order from DIN Media
DIN EN ISO 6974-4 2002-06 Standards 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 6974-4:2000); German version EN ISO 6974-4:2001 More  Order from DIN Media
DIN EN ISO 6974-4 2025-04 Draft standard Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 4: Guidance on gas analysis (ISO/DIS 6974-4:2025); German and English version prEN ISO 6974-4:2025 More  Order from DIN Media
DIN EN ISO 6974-5 2014-10 Standards 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 6974-5:2014); German version EN ISO 6974-5:2014 More  Order from DIN Media
DIN EN ISO 6974-6 2005-08 Standards 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 6974-6:2002); German version EN ISO 6974-6:2005 More  Order from DIN Media
DIN EN ISO 6975 2005-09 Standards Natural gas - Extended analysis - Gas-chromatographic method (ISO 6975:1997); German version EN ISO 6975:2005 More  Order from DIN Media
DIN EN ISO 6976 2016-12 Standards Natural gas - Calculation of calorific values, density, relative density and Wobbe indices from composition (ISO 6976:2016); German version EN ISO 6976:2016 More  Order from DIN Media
DIN EN ISO 6978-1 2005-09 Standards Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine (ISO 6978-1:2003); German version EN ISO 6978-1:2005 More  Order from DIN Media
DIN EN ISO 6978-2 2005-09 Standards Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy (ISO 6978-2:2003); German version EN ISO 6978-2:2005 More  Order from DIN Media
DIN EN ISO 10101-1 2022-12 Standards Natural gas - Determination of water by the Karl Fischer method - Part 1: General requirements (ISO 10101-1:2022); German version EN ISO 10101-1:2022 More  Order from DIN Media

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