Title: Evaluation of a radon-in-water pilot-proficiency test
Authors: JOBBAGY VIKTORSTROH HEIKOMARISSENS GERDGRUBER VALERIAROTH DIETMARWILLNAUER STEFANBERNREITER MARKUSVON PHILIPSBORN HENNINGHULT MIKAEL
Citation: INTERNATIONAL JOURNAL OF APPLIED RADIATION AND ISOTOPES vol. 153 p. 108836 (8 pp)
Publisher: PERGAMON PRESS LTD.
Publication Year: 2019
JRC N°: JRC116721
ISSN: 0020-708X (online)
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC116721
DOI: 10.1016/j.apradiso.2019.108836
Type: Articles in periodicals and books
Abstract: A pilot proficiency test (PT) on measurements of the massic activity of 222Rn in drinking water was organised by JRC-Geel. Fourteen expert environmental radioactivity monitoring laboratories were invited to participate. The key aim of the study was to test, optimise and stream-line the complete process for conducting such a PT in order to perform a large scale Europe-wide PT in a robust manner. The process involved using all state-of-the art knowledge on sampling, transporting and measuring 222Rn in water. It was found that the majority of the participants’ results (92%) were within the +/- 15 % reference range. The pilot-PT showed that the applied process was suitable and can be used for the large scale European PT planned for the third quarter of 2018.
JRC Directorate:Nuclear Safety and Security

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