FprEN ISO 13164-4
Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO/FDIS 13164-4:2023)

Standard No.

FprEN ISO 13164-4

Published By

European Committee for Standardization (CEN)

Scope

ISO 13164-4:2015 describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting. The radon-222 activity concentrations, which can be measured by this test method utilizing currently available instruments, are at least above 0,5 Bq l−1 for a 10 ml test sample and a measuring time of 1 h. This test method can be used successfully with drinking water samples and it is the responsibility of the laboratory to ensure the validity of this test method for water samples of untested matrices. Annex A gives indication on the necessary counting conditions to meet the required detection limits for drinking water monitoring.

FprEN ISO 13164-4 history

• 2023 EN ISO 13164-4:2023 Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO 13164-4:2023)
• 2020 EN ISO 13164-4:2020 Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO 13164-4:2015)