空气中氢气体标准物质的研制  

Preparation of Gas Reference Material of Hydrogen in Air

作　　者：李晓昆[1] 代伟娜[1] 刘晓林[1] 董云峰[1] 黄国庆[1] 

机构地区：[1]中国船舶重工集团公司第七一八研究所,河北邯郸056027

出　　处：《舰船防化》2015年第3期23-27,共5页

摘　　要：采用称量法研制了空气中氢气体标准物质，并用气相色谱法对其进行了均匀性、稳定性评价。该气体标准物质浓度范围为0．05％～3％（mol／mol），相对扩展不确定度为1．5％（k=2），有效期为12个月，使用压力下限为0．5MPa。The gas reference material of hydrogen in air was prepared by weighing method, and the gas chromatography was used to investigate its uniformity and stability. The concentration range of the gas reference material was 0.05%~30% （mol/mol）, the relative expanded uncertainty was 1.5%（k=2）, the validity period was 12 months and the lower limit of operating pressure was 0.SMPa.

关 键 词：空气中氢 气体标准物质 称量法 不确定度 

分 类 号：TQ117[化学工程—无机化工]