标准摘要
[中文适用范围]： 本文件规定了使用α光谱法和229Th作为回收示踪剂测定环境水（包括海水）和废水样品中232Th活度浓度的方法和条件，这些样品在排放到环境中之前是被排放到环境中的。化学分离可以从样品的测试部分中分离和纯化钍。本文件中概述的一般原则可应用于分析水样中其他发射α的钍同位素，例如228Th和230Th。 [外文原描述]： This document specifies the method and the conditions for the determination of 232 Th activity concentration in samples of environmental water (including sea waters) and waste waters before release to the environment using alpha spectrometry and 229 Th as a recovery tracer. A chemical separation allows to separate and purify thorium from a test portion of the sample. The general principles outlined in this document can be applied for the analysis of other alpha-emitting thorium isotopes such as 228 Th and 230 Th in aqueous samples.
英文名称Water quality — Thorium 232 — Part 1: Test method using alpha spectrometry