Common Approach to Proficiency Testing and Interlaboratory Comparisons

  1. French College of Metrology
  1. Oswin Kerkhof,
  2. Michel van Son and
  3. Adriaan M. H. Van Der Veen

Published Online: 3 FEB 2010

DOI: 10.1002/9780470611371.ch39

Transverse Disciplines in Metrology

Transverse Disciplines in Metrology

How to Cite

French College of Metrology (2009) Common Approach to Proficiency Testing and Interlaboratory Comparisons, in Transverse Disciplines in Metrology, ISTE, London, UK. doi: 10.1002/9780470611371.ch39

Author Information

  1. Nederlands Meetinstituut Thijsseweg 11, 2629 JA Delft, the Netherlands

Publication History

  1. Published Online: 3 FEB 2010
  2. Published Print: 1 JAN 2009

ISBN Information

Print ISBN: 9781848210486

Online ISBN: 9780470611371

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Keywords:

  • proficiency testing;
  • certification study;
  • instability;
  • bilateral;
  • metrological traceability

Summary

Proficiency Testing (PT) and Interlaboratory Comparisons (ILCs) are similar activities in the sense that they provide a tool for laboratory performance assessment. The ISO/IEC 17025:2005 standard explicitly mentions these tools as a method for quality monitoring. The performance assessment programs are usually operated using an SI-traceable reference value for benchmarking. The uncertainty evaluation of the reference value appreciates as appropriate effects of non-homogenity and instability. In particular the regular participants in these programs benefit from the demonstrated consistency between reference values in subsequent rounds in that they can monitor long-term effects in their own measurement data.