标准摘要
[中文适用范围]： ISO 6974 的这一部分描述了根据 ISO 6974-1 确定与天然气分析中每种成分的摩尔分数相关的不确定性所需的过程。 [外文原描述]： This part of ISO 6974 describes the process required to determine the uncertainty associated with the mole fraction for each component from a natural gas analysis in accordance with ISO 6974‑1.
英文名称Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 2: Uncertainty calculations