Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 4: Guidance on gas analysis
Edition 2025-02

Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen, carbon dioxyde and C₁ to C₅ and C₆₊ hydrocarbons for a laboratory and on-line measuring system using two columns
Edition 2000-04

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
Edition 2014-07

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
Edition 2002-10

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; Technical Corrigendum 1
Edition 2003-10

Natural gas - Extended analysis - Gas-chromatographic method
Edition 1997-04

Natural gas - Calculation of calorific values, density, relative density and Wobbe indices from composition
Edition 2016-08

Natural gas - Determination of mercury - Part 1: Sampling of mercury by chemisorption on iodine
Edition 2003-10

Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy
Edition 2003-10

Natural gas - Determination of mercury - Part 2: Sampling of mercury by amalgamation on gold/platinum alloy; Technical Corrigendum 2
Edition 2006-04