标准摘要
[中文适用范围]： 本文件规定了通过其子体镭-222 (²²²Rn) 的萃取及其使用液体闪烁分析法进行测量来测定非咸水样品中镭-226 (²²⁶Ra) 度浓度的方法。本文件描述的测试方法，使用目前可获得的闪烁计数器，具有大约 50 mBq·l⁻¹ 的检测限。该方法不适用于测量其他镭同位素。 [外文原描述]： This document specifies the determination of radium-226 ( 226 Ra) activity concentration in non-saline water samples by extraction of its daughter radon-222 ( 222 Rn) 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.
英文名称Water quality — Radium-226 — Part 1: Test method using liquid scintillation counting