title: Combining Results From Multiple Evaluations of the Same Measurand.
abstract: According to the Guide to the Expression of Uncertainty in Measurement (GUM), a result of measurement consists of a measured value together with its associated standard uncertainty. The measured value and the standard uncertainty are interpreted as the expected value and the standard deviation of a state-of-knowledge probability distribution attributed to the measurand. We discuss the term metrological compatibility introduced by the International Vocabulary of Metrology, third edition (VIM3) for lack of significant differences between two or more results of measurement for the same measurand. Sometimes a combined result of measurement from multiple evaluations of the same measurand is needed. We propose an approach for determining a combined result which is metrologically compatible with the contributing results.
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8910 USA.
authors.forename: Rüdiger
authors.initials: R
authors.lastname: Kessel
authors.affiliation: National Institute of Standards and Technology, Gaithersburg, MD 20899-8910 USA.
authors.forename: Raghu N
authors.initials: RN
authors.lastname: Kacker
authors.affiliation: Physikalisch-Technische Bundesanstalt, Braunschweig D-38116 Germany.
authors.forename: Klaus-Dieter
authors.initials: KD
authors.lastname: Sommer
keywords: consensus value; inter-laboratory evaluations; uncertainty in measurement