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Abstract

This report describes the full life cycle of the measurement comparison of 137Cs in air filters among 43 European laboratories monitoring radioactivity in the environment. Gravimetrically pipetting droplets of a gravimetrically diluted standardised 137Cs solution onto real air filters, SI-traceable reference values were established for intercomparison filters carrying a large range of activity close to the routine measurement conditions of the corresponding laboratory. The sample preparation and measurement processes applied in the participating laboratories are described and the results of the intercomparison are presented and discussed in detail. The results point at some problems of radioactivity measurement in air filters which need to be improved by several laboratories. Overall, with 41 out of 48 reported measurement results lying within +/- 33 % of the IRMM reference value, this comparison renders a rather fair result.

Additional information

Authors: WÄTJEN U, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);SZÁNTÓ ZS, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);ALTZITZOGLOU T, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);SIBBENS G, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);KEIGHTLEY J, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);VAN AMMEL R, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);HULT M, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE);DE CORT M, European Commission, Joint Research Centre, Institute for Reference Materials and Measurements, Geel (BE)
Bibliographic Reference: EUR 22926 EN (2007), 81 pp. Free of charge
Availability: Katalogue Number: LA-NA-22926-EN-C The PDF version can be downloaded from: http://bookshop.europa.eu
ISBN: ISBN 978-92-79-06962-8
Record Number: 200819754 / Last updated on: 2008-05-05
Category: PUBLICATION
Original language: en
Available languages: en
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