Natural gas — Determination of composition and associated uncertainty by gas chromatography — Part 3: Precision and bias
天然气 - 气相色谱法测定组成和相关不确定度 - 第3部分:精密度和偏差
This document describes the precision that can be expected from the gas chromatographic method that is set up in accordance with ISO 6974-1. The stated precision provides values for the magnitude of variability that can be expected between test results when the method described in ISO 6974-1 is applied in one or more competent laboratories. This document also gives guidance on the assessment of bias.