ISO 6143:2001 气体分析.标定用混合气体成分的测定.比较方法

标准编号：ISO 6143:2001

中文名称：气体分析.标定用混合气体成分的测定.比较方法

英文名称：Gas analysis — Comparison methods for determining and checking the composition of calibration gas mixtures

发布日期：2001-06

标准范围

本国际标准规定了以下方法:_通过与适当的参考气体进行比较，确定校准气体混合物的成分混合物，_计算校准气体混合物成分的不确定度与已知的测量不确定度之间的关系与之进行比较的参考气体混合物的成分，_通过与适当的参考气体进行比较，检查标定气体混合物的成分混合物，_比较几种校准气体混合物的成分，例如为了比较不同的气体混合物制备方法，或测试密切相关气体混合物的一致性的方法作文注:原则上，本文件中描述的方法也适用于（大部分）未知样品的分析而不是预期的标定气体混合物（即拟用作标定气体混合物的气体混合物）。这样的然而，应用需要适当注意和考虑额外的不确定性成分，例如:用于校准的参考气体和分析样品之间基质差异的影响。

This International Standard provides methods for_ determining the composition of a calibration gas mixture by comparison with appropriate reference gasmixtures,_ calculating the uncertainty of the composition of a calibration gas mixture in relation to the known uncertainty ofthe composition of the reference gas mixtures with which it was compared,_ checking the composition attributed to a calibration gas mixture by comparison with appropriate reference gasmixtures,_ comparing the composition of several calibration gas mixtures, e.g. for the purpose of comparing differentmethods of gas mixture preparation, or for testing consistency among gas mixtures of closely relatedcomposition.NOTE In principle, the method described in this document is also applicable to the analysis of (largely) unknown samplesinstead of prospective calibration gas mixtures (i.e. gas mixtures which are intended for use as calibration gas mixtures). Suchapplications, however, require appropriate care and consideration of additional uncertainty components, for example concerningthe effect of matrix differences between the reference gases used for calibration and the analysed sample.

标准预览图