氯化铁含量测定不确定度评定

对净水剂氯化铁中氯化铁含量的测定进行不确定度的评定，建立不确定度评定程序和方法。依据《测量不确定度评定与表示指南》建立数学模型，进行不确定度的计算并合成不确定度。找出影响净水剂氯化铁中氯化铁含量测定的主要因素，分析归纳了不确定度分量的主要来源，并对结果予以讨论。评定程序和方法符合规范要求，适用于同类型试验不确定度评定。 

Uncertainty Evaluation of Measurement on Ferric Chloride Content

Uncertainty of ferric chloride content as purifier was evaluated，and assessment procedures，mathematical modelling and method were established.Uncertainty was computed and synthesized.Primary factors that influenced ferric chloride content determination were found；primary sources of the uncertainty weight were analyzed and induced.Assessment procedures and methods conformed regulatory requirements，applied to the same type of experimental uncertainty evaluation.