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EVS-EN ISO 13164-4:2023

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

General information
Valid from 15.08.2023
Base Documents
ISO 13164-4:2023; EN ISO 13164-4:2023
Directives or regulations
None

Standard history

Status
Date
Type
Name
15.08.2023
Main
02.03.2020
Main
This document describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting.
The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, are above 0,5 Bq·l−1 which is the typical detection limit for a 10 ml test sample and a measuring time of 1 h.
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.
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