title: International comparability of chemical measurement results.
abstract: The international system of units (SI) is an internationally recognized system based on standards of long-term stability; by the use traceable measurements it provides an international infrastructure for realizing comparable measurements. The work of the Consultative Committee for Amount of Substance (CCQM) and the implementation of the Mutual Recognition Arrangement (MRA) are facilitating an international programme for metrology in chemistry to extend this infrastructure to the field of chemical measurements. The major points of this programme, which include the execution of international comparisons and the construction of a key comparison and calibration database at the BIPM, are described.
authors.affiliation: Bureau International des Poids et Mesures (BIPM), Pavillon de Breteuil, 92312 Sèvres Cedex, France. rwielgosz@bipm.org
authors.forename: R I
authors.initials: RI
authors.lastname: Wielgosz
mesh_terms: D001786:Blood Glucose; D002138:Calibration; D002784:Cholesterol / Q000097:blood; D003401:Creatine / Q000097:blood; D016208:Databases, Factual; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007394:International System of Units / Q000592:standards*; D012015:Reference Standards; D014894:Weights and Measures / Q000592:standards
chemical_list: D001786:Blood Glucose; D002784:Cholesterol; D003401:Creatine