GB/T 28794.5-2012
天然气 在一定不确定度下用气相色谱法测定组成 第5部分：实验室和在线工艺系统中用三根色谱柱测定氮、二氧化碳和C1至C5及C6+的烃类
Determination of natural gas composition by gas chromatography under certain uncertainty Part 5: Determination of nitrogen, carbon dioxide and hydrocarbons from C1 to C5 and C6+ by three chromatographic columns in laboratory and on-line process systems
GBT28794.5-2012, GB28794.5-2012