ISSN:
1432-0517
Keywords:
Key words Certified reference material
;
Database
;
ISO/Guide
;
Interlaboratory comparison
;
Uncertainty estimation
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract In the field of reference materials, COMAR (Code d'Indexation des Matériaux de Référence) is now internationally known as a reliable directory. In order to improve the quality of COMAR, a document which covers general requirements for the registration of reference material has recently been adopted by the Japanese coding centre, NITE. This paper describes the general requirements for reference materials and the current status of the COMAR database coded by the National Institute of Technology and Evaluation (NITE), Japan. The concept of the requirements is fundamentally based on the ISO Guides 30, 31, 33, 34 and 35. Certifications of reference materials are divided into the following three categories in the newly adopted document. 1. Certifications based on the results of interlaboratory comparisons 2. Certifications in accordance with the Measurement Law 3. Certifications in accordance with the measurement results of national institutions An example of an uncertainty evaluation is also presented in the paper.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/s007690050115
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