DIN EN ISO 6975:2005
天然气.延伸分析.气相色谱法
Natural gas - Extended analysis - Gas-chromatographic method (ISO 6975:1997); English version of DIN EN ISO 6975
- 标准号
- DIN EN ISO 6975:2005
- 发布日期
- 2005年09月
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- E24
- 国际标准分类号
- 75.060
- 发布单位
- 德国标准化学会
- 引用标准
- ISO 10715:1997 ISO 14111:1997 ISO 5725-1:1994 ISO 6142:1981 ISO 6143:1981 ISO 6326-1:1989 ISO 6326-2:1981 ISO 6326-3:1989 ISO 6326-4:1994 ISO 6326-5:1989 ISO 6570-1:1983 ISO 6974-1 ISO 6974-2 ISO 6974-3 ISO 6974-4 ISO 6974-5
- 适用范围
- 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.