标准编号：ISO/TS 17503:2015
中文名称：不确定度评估的统计方法 用双因素交叉设计评估不确定度的指南
英文名称：Statistical methods of uncertainty evaluation — Guidance on evaluation of uncertainty using two-factor crossed designs
发布日期：2015-11
标准范围
This Technical Specification describes the estimation of uncertainties on the mean value in experimentsconducted as crossed designs, and the use of variances extracted from such experiments and applied tothe results of other measurements (for example, single observations).This Technical Specification covers balanced two-factor designs with any number of levels. Thebasic designs covered include the two-way design without replication and the two-way design withreplication, with one or both factors considered as random. Calculations of variance components fromANOVA tables and their use in uncertainty estimation are given. In addition, brief guidance is given onthe use of restricted maximum likelihood estimates from software, and on the treatment of experimentswith small numbers of missing data points.Methods for review of the data for outliers and approximate normality are provided.The use of data obtained from the treatment of relative observations (for example, apparent recoveryin analytical chemistry) is included.
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