标准摘要
[中文适用范围]： 本文件规定了通过emanometry测定各种水中镭-226（226Ra）活度浓度的方法。所规定的方法适用于可溶性、悬浮和总226Ra的活度浓度的测定，其中可溶性226Ra的活度浓度大于0,02 Bq l−1 [外文原描述]： This document specifies a test method to determine radium-226 ( 226 Ra) activity concentration in all types of water by emanometry. The test method specified is suitable for the determination of the soluble, suspended and total 226 Ra activity concentration in all types of water with soluble 226 Ra activity concentrations greater than 0,02 Bq l −1 . The decay chains of 238 U and 232 Th are given in Annex A. Figure A.1 shows the 238 U and its decay chain.
英文名称Water quality — Radium-226 — Part 2: Test method using emanometry