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FP5

Uncertainty of reference materials according to the requirements of the Guide to the Expression of Uncertainty in Measurement

Funded under: FP5

Abstract

From the perspective of the GUM, certification of reference materials is an integrated process of correct preparation, demonstration of homogeneity and stability and accurate and traceable characterization, whereby all components of uncertainty on the desk of the user should be taken into account. Uncertainty includes not only full uncertainty of the batch characterization, but also uncertainties related to possible between-bottle variation, instability upon long-term storage and instability during transport to the customer. The various aspects of reference material certification are discussed and ways to estimate the uncertainty of components are given.

Additional information

Authors: PAUWELS J, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Geel (BE);LINSINGER T P J, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Geel (BE);LAMBERTY A, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Geel (BE);SCHIMMEL H, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements (IRMM), Geel (BE);VAN DER VEEN A M H, Nederlands Meetinstitut (NMi), Delft (NL)
Bibliographic Reference: Paper presented: Reference Materials for Technologies in the New Millennium, Berlin (DE) 22-23 May 2000
Availability: Available from European Commission, Joint Research Centre, Ispra (IT)
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