4. How do I get a laboratory score?
Interpreting proficiency test data raises at least three questions:
How to express the value assigned to the material? As this material may eventually be used as an external reference material, it is also important to know how to express the associated uncertainty.
How to assess the dispersion of test measurements? The results obtained by one laboratory will be judged by comparison with those of other participants.
How do you judge the suitability of a laboratory? This is a simple practical problem: once the test has been completed, the laboratory must be able to provide a certificate to the auditor in charge of renewing its accreditation.
4.1 How do you determine...
The Ultimate Scientific and Technical Reference
This article is included in
Laboratory quality and safety procedures
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
How do I get a laboratory score?
Our advice
Bibliography
Feinberg M., Bugner E., Theiller G. Houba X., Kadijk F. Expression of the reference value for proficiency tests (1995) J. of Chemometrics 9, 197-209
ISO 13528:2002, Statistical methods used in proficiency testing by inter-laboratory comparisons (2002) ISO, Geneva (under revision)
ISO 17043:2007, Conformity assessment. General requirements...
Websites
COMAR is a website dedicated to gathering and disseminating information on available certified reference materials. Its database lists thousands of certified reference materials (CRMs) produced worldwide by around 220 producers in 25 countries.
...
The Ultimate Scientific and Technical Reference
