№ files_lp_3_process_7_106003
Official statement outlining methodological considerations and proposed policy developments for the evaluation of key comparison data, estimation of KCRVs, and calculation of degrees of equivalence within CCQM.
Document number: CCQM/0903; CCQM/10-03; CCQM/11-18
Date: 13 April 2012
Issuing body: CCQM Key Comparison Reference Value Working Group (KCRV WG)
Organization: CCQM
Chairman: Maurice Cox
Contributors: Steve Ellison
Affiliations: NPL; LGC Ltd
Subject: Treatment of key comparison data and estimation of KCRV and degrees of equivalence
Related documents: CCQM/09-03; CCQM/10-03 (Version 6); CCQM/11-18
Scope: Guidance on excess-variance procedures, DerSimonian-Laird method, and calculation of DoE uncertainties
Context: CCQM plenary meeting April 2011 and subsequent WG feedback
Proposed actions: Revision of CCQM/10-03; review of excess-variance use in DoE calculation; development of policy on stability and homogeneity
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