Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 974-1:2012 + Cor 1:2012) (consolidated version)
Uncertainty of measurement -- Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) -- Supplement 1: Propagation of distributions using a Monte Carlo method— 98 стр.
Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 6974-1:2012)
Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 1: General guidelines and calculation of composition (ISO 6974-1:2012)
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 5: Determination of nitrogen, carbon dioxide and C<(Index)1> to C<(Index)5> and C<(Index)6+> hydrocarbons for a laboratory and on-line process application using three columns (ISO 6974-5:2000); German version EN ISO 6974-5:2001— 20 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 - Calculation of calorific values, density, relative density and Wobbe indices from composition (ISO 6976:2016); German version EN ISO 6976:2016— 67 стр.
Natural gas and biomethane for use in transport and biomethane for injection in the natural gas network - Part 1: Specifications for biomethane for injection in the natural gas network; German version EN 16723-1:2016— 22 стр.
Natural gas and biomethane for use in transport and biomethane for injection in the natural gas network - Part 2: Automotive fuels specification; German version EN 16723-2:2017— 27 стр.
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<(Index)8> using two packed columns (ISO 6974-3:2000); German version EN ISO 6974-3:2001— 20 стр.
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— 17 стр.
