The Standards, Measurements and Testing Programme (SMamp;T) of the European Commission (continuation of the BCR and Measurements and Testing Programmes) aims to contribute to the harmonization and improvement of methods and measurements carried out within the European Union and hence to the comparability of data necessary for e.g. trade activities, monitonng of environment, food and health, etc. One of the tool currently used to achieve this goal is the organization of interlaboratory studies (intercomparisons and certifications of reference materials) in which laboratories may collaborate to improve the measurement or analysis concerned. Other activities are related to development of new methods and prenormative research. Examples of projects undertaken within the Measurements and Testing Programme (1990-94) are given in this paper, covering different aspects, namely interlaboratory study on modern pesticides in freeze dried water, certification of Cr-species in water and welding dust, evaluation of extraction and derivatization procedures in organotin specia-tion analysis, network on harmonization of leading/extraction tests for environmental risk assessment, and proficiency testing scheme applied to marine monitoring (QUASIMEME project).
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