DIN EN ISO 6974-5:2002 天然气.使用气相色谱法对规定的不确定度组分的测定.第5部分:使用三柱法对实验室和在线过程应用的氮、二氧化碳和C1至指数5和C6+烃类的测定 (ISO 6974-5:2000); 德文版本 EN ISO 6974-5:2001
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 5: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application usi