ISO 13165-1:2022

Qualité de l'eau - Radium-226 - Partie 1: Méthode d'essai par comptage des scintillations en milieu liquide

This document specifies the determination of radium-226 (²²⁶Ra) activity concentration in non-saline water samples by extraction of its daughter radon-222 (²²²Rn) and its measurement using liquid scintillation analysis.

The test method described in this document, using currently available scintillation counters, has a detection limit of approximately 50 mBq·l⁻¹. This method is not applicable to the measurement of other radium isotopes.

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