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JCTLM: Joint Committee for Traceability in Laboratory Medicine
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in French: Comité commun pour la traçabilité en médecine de laboratoire

The JCTLM was created in 2002 through a Declaration of Cooperation between the International Committee of Weights and Mesures (CIPM), the International Federation for Clinical Chemistry and Laboratory Medicine (IFCC), and the International Laboratory Accreditation Cooperation (ILAC) in response to the implementation of the European Community Directive 98/79/EC on in vitro medical devices. The Declaration of Cooperation was revised in 2012, following the revision of harmonized standards relating to higher order reference materials and methods.

The JCTLM Executive Committee oversees the operations of the JCTLM, and its Working Group 1 and Working Group 2 establish lists of available higher order reference materials, measurement procedures/methods and measurement laboratory services with respect to the technical basis laid down in the JCTLM Framework.


Prof. Mathias M. Müller
Austrian Society of Quality Assurance and Standardization
Horlgasse 18/5
1090 Vienna
Dr Robert Wielgosz
Bureau International des Poids et Mesures
Pavillon de Breteuil

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JCTLM-WG1 Cycle XI (2014) Call for nominations of reference materials and reference procedures for laboratory medicine and in vitro diagnostics - Closing date 30 May 2014
JCTLM-WG1 Quality Manual | Criteria for nominated nucleic acid reference materials
JCTLM-WG2 Cycle IX (2014) Call for nominations of reference measurement laboratory services - Closing date 30 May 2014
JCTLM-WG2 Quality Manual | IFCC EQAS for Reference Laboratories

Metrological approaches to purity determination for Primary Reference Materials

•  From 4 to 5 December 2014
Meeting of the JCTLM Executive Committee