DIN EN ISO 6974-2 E:2010 天然气 通过气相色谱法测定成分和相关不确定度 第2部分:不确定度计算 (ISO/DIS 6974-2:2010) 草案
Draft Document - Natural gas - Determination of composition and associated uncertainty by gas chromatography - Part 2: Uncertainty calculations (ISO/DIS 6974-2:2010); German version prEN ISO 6974-2:2010