Title: Application of Consistency Checking to Evaluation of Uncertainty in Multiple Replicate Measurements
Authors: KESSEL RuedigerBERGLUND MICHAELWELLUM R.
Citation: ACCREDITATION AND QUALITY ASSURANCE vol. 13 no. 6 p. 293-298
Publisher: SPRINGER
Publication Year: 2008
JRC N°: JRC41465
ISSN: 0949-1775
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC41465
DOI: 10.1007/s00769-008-0382-x
Type: Articles in Journals
Abstract: The use of repeated measurements in the field of quantitative chemical analysis is common but leads to the problem of how to combine the measurement values and produce a result with an uncertainty following the GUM. A solution for combining repeated measurement results and their individual uncertainties is proposed here based on simple interval logic. The individual measurement values and their uncertainties are compared with the calculated average value to see if this implies that another, possibly unknown source of uncertainty is present. A simple numerical example is given showing how the method can be implemented in practice.
JRC Institute:Institute for Reference Materials and Measurements

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