ISO 6974-3:2000
天然气 用气相色谱法测定规定的不确定度的组分 第3部分:用两填充柱测定氢、氦、氧、氮、二氧化碳和碳至C<下标>8的烃类
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 C8 using two packed columns