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ISO 13164-4:2023

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

Publication date:   Jul 20, 2023

General information

60.60 Standard published   Jul 20, 2023

ISO

ISO/TC 147/SC 3 Radioactivity measurements

International Standard

13.060.60   Examination of physical properties of water | 17.240   Radiation measurements | 13.280   Radiation protection

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Scope

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.

Life cycle

PREVIOUSLY

WITHDRAWN
ISO 13164-4:2015

NOW

PUBLISHED
ISO 13164-4:2023
60.60 Standard published
Jul 20, 2023