钢铁工业中化学分析的溯源性

摘要

按照ISO/IEC 17025的规定,钢铁材料的化学分析对于国际单位制(SI)单位或基准不具有直接溯源性.习惯上人们认为,特定的分析方法应通过参考物质建立到基准方法的计量溯源性.标准物质委员会(REMCO)最近定义了基于这种传统概念的有证参考物质(CRM).本文分析论述了ISO分析技术委员会、国际钢铁工业分析委员会(ICASI)以及为建立钢铁工业中化学分析的计量溯源性而开展的国际能力验证计划等相关工作得到的一些主要结果.%Chemical analysis of iron and steel has "not" direct traceability to SI unit or primary standard specified in ISO/IEC 17025. It is believed traditionally that specified analysis methods should have a metrological traceability to primary method through reference materials. The Committee on Reference Materials (REMCO) recently defined CRM following to this traditional concept. This paper describes the results of works relating to ISO sub-committees, ICASI (International Committee of Analysis in Steel and Iron Industry) and international proficiency test programmes which were carried out in order to establish metrological traceability in chemical analysis in iron and steel industry.