This International Standard describes the specifications for the quantitative analysis of the following components of natural gas: helium hydrogen argon oxygen nitrogen carbon dioxide saturated hydrocarbons from C~ to Cs hydrocarbon fractions from C6 upwards aromatic compounds as benzene and toluene The gas-chromatographic methods determine the components in the following ranges: oxygen: 0.001% (n/n) to 0.5 % (n/n) helium: 0.001% (n/n) to 0.5 % (n/n) hydrogen: 0.001% (n/n) to 0.5 % (n/n) argon: 0.001% (n/n) to 0.5 % (n/n) nitrogen: 0.001% (n/n) to 40 % (n/n) carbon dioxide: 0.001% (n/n) to 40 % (n/n) methane: 50 % (n/n) to 100 % (n/n) ethane: 0.02 % (n/n) to 15 % (n/n) propane: 0.001% (n/n) to 5 % (n/n) higher hydrocarbons: The method can measure hydrocarbon components from 10.6 (n/n) up to their maximum concentration, which is compatible with the requirement that the gas is free from hydrocarbon condensate at any pressure in the range 1 x 102 kPa to 7 x 103 kPa.
DIN EN ISO 6975-2005由德国标准化学会 DE-DIN 发布于 2005-09。
DIN EN ISO 6975-2005 在中国标准分类中归属于: E24 天然气,在国际标准分类中归属于: 75.060 天然气。
* 在 DIN EN ISO 6975-2005 发布之后有更新,请注意新发布标准的变化。
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