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

ISO-13164-4 - 2ND EDITION - CURRENT
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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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Document Number

ISO 13164-4:2023

Revision Level

2ND EDITION

Status

Current

Publication Date

July 1, 2023

Committee Number

ISO/TC 147/SC 3