Abstract
The evaluation of measurement uncertainty, and that of uncertainty statements of participating laboratories will be a challenge to be met in the coming years. The publication of ISO 17025 has led to the situation that testing laboratories should, to a certain extent, meet the same requirements regarding measurement uncertainty and traceability. As a consequence, proficiency test organizers should deal with the issues measurement uncertainty and traceability as well. Two common statistical models used in proficiency testing are revisited to explore the options to include the evaluation of the measurement uncertainty of the PTRV (proficiency test reference value). Furthermore, the use of this PTRV and its uncertainty estimate for assessing the uncertainty statements of the participants for the two models will be discussed. It is concluded that in analogy to Key Comparisons it is feasible to implement proficiency tests in such a way, that the new requirements can be met.
Similar content being viewed by others
Author information
Authors and Affiliations
Additional information
Received: 29 September 2000 Accepted: 3 December 2000
Rights and permissions
About this article
Cite this article
van der Veen, A. Uncertainty evaluation in proficiency testing: state-of-the-art, challenges, and perspectives. Accred Qual Assur 6, 160–163 (2001). https://doi.org/10.1007/PL00013512
Issue Date:
DOI: https://doi.org/10.1007/PL00013512