@article{JRC119713, number = {KJ-NA-30127-EN-N (online)}, address = {Luxembourg (Luxembourg)}, issn = {1831-9424 (online)}, year = {2020}, author = {Jobbagy V and Stroh H and Marissens G and Malo P and Hult M and Van Ammel R and Gruber V and Roth D}, isbn = {978-92-76-17298-7 (online)}, publisher = {Publications Office of the European Union}, abstract = {This report focuses on the technical evaluation of the REM (Radioactivity Environmental Monitoring) 2018 radon-in-water proficiency test. It contains details on the material characterisation, performance evaluation, information on the participants` organisation, the applied analytical methods. Feedback from participants is also included. Another JRC report (JRC116812) contains the performance evaluation of the participants and different analytical methods in the REM 2018 PT giving an overview on the exercise and the key scores of the participants. }, title = {Technical report on the REM 2018 radon-in-water proficiency test}, url = {}, doi = {10.2760/805627 (online)} }