STATISTICS IN METROLOGY: INTERNATIONAL KEY COMPARISONS
AND INTERLABORATORY STUDIES
1
Azerbaijan State Oil and Industry University, Azerbaijan
E-mail:
s.aliyeva@yandex.com
Abstract:
Stochastic modeling and analysis of international key
comparisons (interlaboratory comparisons) pose several fundamental questions for statistical methodology. A key comparison (KC) is
specifically designed to derive the key comparison reference value and to assess conformance of calibrations by participating national
metrology laboratories at a few, “key”, settings for a particular measurement process. An approach to the statistical study of key
comparisons data is proposed using a model taken from meta-analysis. This model leads to a class of weighted means estimators for
the consensus value and to a method of assessing the uncertainty of the resulting estimates.
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