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Given the metrological demands of ISO/IEC 17025 on testing laboratories and the obligation they have to make use of CRMs produced by a competent body that can provide the required traceability, CRM users are in need of more guidance for the selection of CRMs. This is especially the case as in reality large discrepancies exist in both the quality of CRMs offered by producers from all over the world, as well as in the credibility and traceability of the certified values. Therefore, accreditation of reference material producers is seen as an important step in guiding them.

This led IRMM's Reference Materials Unit to decide to start the establishment of a quality system according to ISO Guide 34 for the production of its BCR and IRMM CRMs and to plan formal accreditation. In consideration of the European "decentralised philosophy", which consists of using competencies existing in the Member States, rather than setting up new centralised management capacities, the IRMM system is largely based on the use of collaborators. The management of and responsibility for the CRM production process, including all post-certification activities are, however, completely with IRMM's Reference Materials Unit.

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Additional information

Authors: PAUWELS J, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE)
Bibliographic Reference: An oral report given at: 3rd Central European Conference on Reference Materials (CERMM-3) Organised by: Jozef Stefan Institute, Ljubljana (SI) Held at: Roga�ka Slatina (SI), 30 May - 1 June 2002
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