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RS ISO 4722-1: 2023
Water quality — Thorium 232 — Part 1: Test method using alpha spectrometry
Abstract

This document specifies the method and the conditions for the determination of 232Th activity
concentration in samples of environmental water (including sea waters) and waste waters before
release to the environment using alpha spectrometry and 229Th 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 228Th and 230Th in aqueous samples.

General Information

CodeClassificationThemePagesPublisherAvailability
RS ISO 4722-1: 2023ADOPTED ISO STANDARDSEnvironment. Health protection. Safety27First Edition
Sep 2024		Available
Price: RWF 27,000


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