Community Research and Development Information Service - CORDIS


For implementation of EC Directive Nr.779/80/EEC on SOs and suspended particulates, reference materials have been prepared and circulated by JRC Ispra for an intercomparison of calibration methods and procedures. By means of a mobile laboratory, equipped with comparison instruments, parallel measurements have been performed in the networks. These instruments, also used for the measurement of the reference materials, were calibrated and operated according to the revised reference methods of the Directive. The crosschecks have been discussed in relation to an arbitrary band of + - 10 microg/m3 + - 10% of the comparison instrument results. Inadequate sampling and a wrong or incomplete application of the revised reference methods seem the main causes of the deviations discussed with the participants.

Additional information

Authors: PAYRISSAT M, JRC Ispra Estab. (IT)
Bibliographic Reference: Paper presented: Rencontre Internationale sur l'Harmonisation de la Mise en Oeuvre Technique des Trois Directives CEE Qualite de l'Air, Lyon (FR) Nov. 22-24, 1988
Availability: Available from (1) as Paper FR 34357 ORA
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