海水中无机成分标准样品的定值和不确定度评估

Certified Value and Evaluating Uncertainty of Seawater Inorganic Elements Reference Material

按国家标准《GB/T 15000.3—2008标准样品工作导则(3)》评估了海水中无机成分标准样品。分别从标样的定值、均匀性、长期和短期稳定性等方面论述了不确定度的来源和评定方法,同时介绍了各种因素产生的不确定度以及总合成不确定度的计算方法。

The uncertainty of measurement of seawater inorganic elements certified reference material was evaluated. The uncertainty of certified concentration value of seawater inorganic elements certified reference material is described. The uncertainty components,between-bottle,long-term stability,characterization uncertainty were evaluated according to GB /T15000 directives for the work of reference materials.