DIN EN ISO 6974-4-2002 天然气.使用气相色谱法对规定的不确定度组分的测定.第4部分:采用双柱法对实验室和在线测量系统的氮、二氧化碳和C1至指数5和C6+烃类的测定 (ISO 6974-4:2000); 德文版本 EN ISO 6974-4:2001
Natural gas - Determination of composition with defined uncertainty by gas chromatography - Part 4: Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using
The project specifies a method for the determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line measuring system using two columns.#,,#