Accounting for bias in measurement uncertainty estimation

被引:18
作者
Haesselbarth, W [1 ]
机构
[1] BAM Fed Inst Mat Res & Testing, Dept Analyt Chem Reference Mat, D-12200 Berlin, Germany
关键词
Measurement Uncertainty; Control Chart; Bias Correction; Standard Uncertainty; Uncertainty Estimation;
D O I
10.1007/s00769-004-0782-5
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Generic issues and current approaches in the evaluation of bias studies with respect to estimation of measurement uncertainty are discussed, focusing on two main scenarios. In the first, for a within-laboratory assessment of a fully developed uncertainty budget, bias studies are carried out to verify the pre-established performance of a measurement procedure, and design corrective actions if necessary. In the second scenario, for an estimation of measurement uncertainty from within-laboratory validation data, bias studies are carried out to "calibrate" the whole measurement procedure and evaluate its performance, more specifically to estimate the uncertainty of measurement by combination of bias and precision estimates.
引用
收藏
页码:509 / 514
页数:6
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