Abstract

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.

Begin

2021-12-13

WI

00230411

Planned document number

DIN EN ISO 13164-4

Project number

11904737

Responsible national committee

NA 119-01-03-08 UA - Radioactivity measurements in waters  

Responsible european committee

CEN/TC 230 - Water analysis  

Responsible international committee

ISO/TC 147/SC 3/WG 15 - Liquid scintillation counting and proportional counting  

draft standard

Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO/FDIS 13164-4:2023); German and English version prEN ISO 13164-4:2023
2023-10
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previous edition(s)

Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO 13164-4:2015); German version EN ISO 13164-4:2020
2020-12

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