DIN EN ISO 6974-2 E:2010-03 天然气 用气相色谱法测定规定的不确定度的组分 第2部分:测量系统的特性和数据处理的统计(草案)
Determination of components of natural gas with specified uncertainties by gas chromatography Part 2: Characteristics of measuring systems and statistics of data processing (draft)