利用质量控制和方法确认数据评定汽油中MTBE含量的测量不确定度  

Evaluation of Uncertainty of Measuring MTBE Content in Gasoline by Quality Control and Method Validation Data

作　　者：赵蕊 于毅涛 杜美玲 Zhao Rui;Yu Yitao;Du Meiling(Yunnan Product Quality Supervision and Inspection Institute,Kunming 650000,Yunnan,China)

机构地区：[1]云南省产品质量监督检验研究院

出　　处：《石油工业技术监督》2020年第1期9-11,共3页Technology Supervision in Petroleum Industry

摘　　要：按照RB/T 141—2018《化学检测领域测量不确定度评定利用质量控制和方法确认数据评定不确定度》,在期间精密度测量条件下,基于质量控制结果和方法确认数据,接受测量系统正态性与独立性假设,合并期间精密度不确定度分量uR′和偏倚不确定度分量ub,给出样品水平下的合成标准不确定度uc和扩展不确定度U,为检测实验室评定汽油中MTBE含量的测量不确定度提供了一种简便方法。According to RB/T 141-2018"Evaluation of Measurement Uncertainty in the Field of Chemical Detection Evaluating Uncertainty Using Quality Control and Method Validation Data",under the condition of intermediate precision measurement,based on the quality control results and method validation data and accepting the assumption of measurement system normality and independence,the synthetic standard uncertainty uc and expanded uncertainty U at sample level are given by merging the component uR′of intermediate precision uncertainty and the component ub of bias uncertainty,which provides a simple method for evaluating the measurement uncertainty of MTBE content in gasoline in detection laboratories.

关 键 词：汽油 MTBE 质量控制 方法确认数据 不确定度评定 

分 类 号：TE6[石油与天然气工程—油气加工工程]