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ILAC – CITAC Relationship


ILAC has a long standing relationship with the Cooperation on International Traceability in Analytical Chemistry (CITAC).



The mission of the Cooperation on International Traceability in Analytical Chemistry (CITAC) is to improve traceability of the results of chemical measurements everywhere in the world and to ensure that analytical measurements made in different countries and/or at different times are comparable. The main issue of the CITAC strategy is dissemination of the knowledge accumulated in the field of metrology in chemistry to as many as possible analytical laboratories. CITAC prepares discussion and scientific papers for journals and guides for analytical laboratories in relation to metrological traceability, measurement uncertainty and analytical quality assurance.

“Together with ILAC and other international organizations CITAC organises seminars, symposia and workshops to assist analytical laboratories with tools for establishing traceability to “stated references”.

“In general CITAC plays a bridging role in the field of analytical chemistry between industries, regulatory bodies, universities, and metrology, standardisation and accreditation bodies. Because of these goals CITAC has close links with ILAC. In particular, CITAC is a stakeholder of ILAC through the ILAC Laboratory Committee, several ILAC representatives are the CITAC members, etc.

“Thus, I am happy to support on behalf of CITAC the International Accreditation Day proposed by ILAC (9 June) that closely follows the World Metrology Day (20 May).”

– Dr. Ilya Kuselman, previous CITAC Chairman


CITAC Contact Details
CITAC Secretary: Prof. Dr. Ricardo J.N.B, da Silva
Tel: +351 21 7500959
Fax: +351 21 7500088
Email: rjsilva@fc.ul.pt