НРБУ-97, ДСАНПіН 2.2.4-171-10.

Just lunched. Under estimation

JRC-REM 2019 Proficiency Test. 2019 : Water (Gross alpha/beta activity) Ongoing
Most Recent Intercomparison

Jobbagy V.,Hult M. Performance evaluation report of the REM 2018 radon-in-water proficiency test. European Commission, Geel, 2019, JRC116812 Lab code #27