计量学报2025，Vol.46Issue(12)：1729-1736,8.DOI:10.3969/j.issn.1000-1158.2025.12.04
氢燃料电池汽车用氢中杂质组分的国际比对
International Comparison of Impurity Component in Hydrogen for Fuel Cell Vehicles
摘要
Abstract
Helium,argon,nitrogen,methane,ethane,carbon monoxide,carbon dioxide,and dimethylthioether(DMS)gas standards in hydrogen were prepared by the gravimetric method,and corresponding analytical methods were established for each component.The eight components contained in the CCQM-K164(Multi-component impurities in hydrogen for hydrogen fuel cell vehicles)international comparison sample were calibrated using gas standards.Due to the extremely low concentration of DMS,calibration was performed by the gas standard generated from a dynamic dilution device.The other components were directly calibrated using gas standards with similar molar fractions prepared by the gravimetric method.The comparison results show that,except for DMS,all seven other components achieved excellent international equivalence.The leading laboratory observed significant changes in DMS values before and after delivery,which contributed to the dispersion of the comparison results.In addition,it was found that the prepared standard contained trace amounts of neon.If the analytical method was not optimized for the separation of neon and helium,it would affect the accuracy of the helium measurement result.关键词
氢燃料电池/杂质组分/国际比对/称量法/CCQM-K164/二甲基硫醚/气体标准物质Key words
hydrogen fuel cell/impurity component/international comparison/gravimetric method/CCQM-K164/DMS/gas standards分类
通用工业技术引用本文复制引用
胡树国,郭谡,马浩淼,尹冬梅,杜秋芳,方梦醒,张体强..氢燃料电池汽车用氢中杂质组分的国际比对[J].计量学报,2025,46(12):1729-1736,8.基金项目
国家重点研发计划(2018YFF0212904) （2018YFF0212904）
国家市场监管总局质量强链项目(ZLQL2024003-05) （ZLQL2024003-05）
