GOST 31371.5-2008
天然气.气相色谱法测定规定的不确定度的组分.第5部分:用三柱测定实验室和在线处理用的氮、二氧化碳、C1至C5和C6+的烃类
Natural gas. Determination of composition with defined uncertainty by gas chromatography method. Part 5. Determination of nitrogen, carbon dioxide and C1 to C5 and C6+ hydrocarbons for a laboratory and on-line process application using three columns