低温与特气2024，Vol.42Issue(4) ：32-37.DOI:10.3969/j.issn.1007-7804.2024.04.008

高准确度氮中二氯二氟甲烷气体标准物质研制

Development of High Accuracy Dichlorodifluoromethane Gas Reference Material in Nitrogen

张文申 许峰 张符 林帅 王丽 荀其宁
低温与特气2024，Vol.42Issue(4) ：32-37.DOI:10.3969/j.issn.1007-7804.2024.04.008
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  • 维普
  • 万方数据

高准确度氮中二氯二氟甲烷气体标准物质研制

Development of High Accuracy Dichlorodifluoromethane Gas Reference Material in Nitrogen

张文申 1许峰 1张符 1林帅 1王丽 2荀其宁1
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作者信息

  • 1. 山东非金属材料研究所,山东济南 250031
  • 2. 威海市环翠区海洋发展研究中心,山东威海 264200
  • 折叠

摘要

介绍了高准确度氮中二氯二氟甲烷混合气体标准物质的研制过程,主要包括混合气配制、混合气均匀性检验、稳定性考察和称量法定值等过程.研制的氮中二氯二氟甲烷混合气体标准物质浓度范围为10.0～100(μmol/mol),F检验和回归曲线法结果表明,该混合气体标准物质压力为0.5～10 MPa,均匀性及稳定性良好,标准物质定值结果的相对扩展不确定度为2％(k=2),有效期为12个月.

Abstract

This paper introduces the development process of the mixed gas reference material of dichlorodifluoromethane in nitrogen with high accuracy,including the preparation of the mixed gas,the homogeneity test of the mixed gas,the stability inspection and the weighing legal value.The nominal concentration of the developed dichlorodifluoromethane mixed gas ref-erence material in nitrogen is 10.0～100(μmol/mol).The results of F test and regression curve method show that the mixed gas reference material has good homogeneity and stability in the pressure range of 0.5～10 MPa.The relative ex-panded uncertainty of the calibration results is 2％(k=2),and the validity period is 12 months.

关键词

高准确度/称量法/二氯二氟甲烷/气体标准物质

Key words

high accuracy/weighing method/dichlorodifluoromethane/gas reference material

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出版年

2024
低温与特气
光明化工研究设计院

低温与特气

影响因子：0.232
ISSN：1007-7804
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