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prБДС EN ISO 13164-4:2022

Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO/DIS 13164-4:2022)

General information

40.60     Apr 18, 2022



European Standard

13.060.60     17.240     13.280  


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.

Life cycle


БДС EN ISO 13164-4:2020


prБДС EN ISO 13164-4:2022
40.60 Close of voting
Apr 18, 2022

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Adopted from prEN ISO 13164-4

Adopted from ISO/DIS 13164-4