ISO/TS 29041-2008
气体混合物.重量分析准备.控制成分的相关性
Gas mixtures - Gravimetric preparation - Mastering correlations in composition
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- 标准号
- ISO/TS 29041-2008
- 发布日期
- 2008年02月
- 实施日期
- 废止日期
- 无
- 中国标准分类号
- E04
- 国际标准分类号
- 71.040.40;71.100.20
- 发布单位
- 国际标准化组织
- 适用范围
- In this Technical Specification, the gravimetric mixture preparation as given in ISO 6142 is investigated for influences of a priori existing, as well as correlations introduced by data processing. All calculations refer to an example which consists in the preparation of a synthetic natural gas of a target composition as follows: 1,4 mol % N2, 1,8 mol % CO2, 9,4 mol % ethane, 3,4 mol % propane, 1 mol % nbutane, and 83 mol % methane. All considerations given for this example concerning mixture feasibility, choice of preparation procedure, and weighing steps and sequences are the same as given in ISO 6142. This also applies to all estimates for basic uncertainty sources and the purity tables of the gases used for preparation. All calculations follow the principles, and use the tools and algorithms laid down in Annex A. For the sake of simplicity, procedural steps such as matrix transformation, inversion or matrix calculus are not detailed each time they are used in the calculations.