Radon activity concentration-a Euromet and BIPM supplementary comparison

A. Röttger*, A. Honig, V. Schmidt, H. Buchröder, A. Rox, G. Butterweck, Ch Schuler, F. J. Maringer, P. Jachs, R. Edelmaier, N. Michielsen, C. B. Howarth, J. C. H. Miles, A. Vargas, X. Ortega, I. Burian, T. Turtiainen, N. Hagberg

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)


For the first time, a comparison of radon activity concentration in air has been performed within the scope of Euromet. In the project 657, 'Comparison of calibration facilities for the radon activity concentration,' 12 participants from 9 countries compared different radon reference atmospheres at 1, 3 and 10 kBq m-3 via a transfer standard. The comparison was listed as BIPM supplementary comparison EUROMET.RI(II)-S1. The results of most participants are correlated due to common traceability to one single radon gas standard producer. This makes a careful correlation analysis necessary to achieve an appropriate comparison reference value. The results of the comparison as well as the complex analysis of the correlated set of data is presented and discussed.

Original languageEnglish
Pages (from-to)1102-1107
Number of pages6
JournalApplied Radiation and Isotopes
Issue number10-11
Publication statusPublished - 2006


  • Comparison
  • Radon activity concentrations


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