高纯氮中微量氧分析的不确定度和氧气体标准物质在有效期内变化不确定度计算方法的讨论  

The Discussion of The Computational Methods About The Analysis Uncertainty And The Change Uncertainty of The Micro-Oxygen in Nitrogen Calibration Gases That Was Remain in Force

作　　者：李春瑛[1] 张培壮[1] 章恭菲[1] 

机构地区：[1]中国计量科学研究院

出　　处：《低温与特气》2008年第4期24-28,共5页Low Temperature and Specialty Gases

摘　　要：介绍了氮中微量氧标准气体在研究过程中稀释气体高纯氮中氧分析不确定度的评价依据,给出了评价过程和结果。讨论了氧气体标准物质在有效期内变化不确定度的计算方法,对氧气体标准物质定值不确定度进行了评价。The high purity nitrogen was inert diluents gas during preparing the micro-oxygen in nitrogen calibration gases, as a result the content of oxygen in nitrogen was important technical target. We have done large numbers of experiments in order to.obtain exact data. In this paper the basis, process and result were introduced of evaluating the analysis uncertainty. We have discussed the design procedure of the change uncertainty of the micro-oxygen in Nitrogen calibration gases which was remain in force, in addition We have evaluated definiting value uncertainty of the calibration gases.

关 键 词：氮中微量氧 氧分析 标准气体的不确定度 

分 类 号：TQ117[化学工程—无机化工]