Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen, carbon dioxide and C<(Index)1> to C<(Index)5> and C<(Index)6+> hydrocarbons for a laboratory and on-line measuring system using two columns (ISO 6974-4:2000); German version EN ISO 6974-4:2001— 16 стр.
Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 6974-1:2012); German version EN ISO 6974-1:2012— 52 стр.
Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations (ISO 6974-2:2012); German version EN ISO 6974-2:2012— 24 стр.
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— 23 стр.
Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 5: Isothermal method for nitrogen, carbon dioxide, C<(Index)1> to C<(Index)5> hydrocarbons and C<(Index)6+> hydrocarbons (ISO 6974-5:2014); German version EN ISO 6974-5:2014— 35 стр.
Natural gas - Determination of water by the Karl Fischer method - Part 3: Coulometric procedure (ISO 10101-3:1993); German version EN ISO 10101-3:1998— 10 стр.
Natural gas - Determination of water by the Karl Fischer method - Part 2: Titration procedure (ISO 10101-2:1993); German version EN ISO 10101-2:1998— 11 стр.
Natural gas - Calculation of compression factor - Part 3: Calculation using physical properties (ISO 12213-3:2006); German version EN ISO 12213-3:2009— 44 стр.
Natural gas - Calculation of compression factor - Part 2: Calculation using molar-composition analysis (ISO 12213-2:2006); German version EN ISO 12213-2:2009— 39 стр.
Natural gas - Natural gas for use as a compressed fuel for vehicles - Part 1: Designation of the quality (ISO 15403-1:2006); German version EN ISO 15403-1:2008— 32 стр.
