ISO 13165-1:2022

Water quality — Radium-226 — Part 1: Test method using liquid scintillation counting

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.

Edition	2022
Standard Part No	1
Published Date	2022
Published By	International Standardization Organisation
Page Count	15