ISO 4722-1:2023
International Standard
Current Edition
·
Approved on
16 October 2023
Water quality — Thorium 232 — Part 1: Test method using alpha spectrometry
ISO 4722-1:2023 Files
English
18 Pages
Current Edition
45.97 BHD
ISO 4722-1:2023 Scope
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.
Best Sellers
GSO 150-2:2013
Gulf Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 150-2:2015
GSO 150-2:2013
Bahraini Standard
Expiration dates for food products - Part 2 :
Voluntary expiration dates
BH GSO 2055-1:2016
GSO 2055-1:2015
Bahraini Technical Regulation
HALAL FOOD - Part 1 : General Requirements
GSO 2055-1:2015
Gulf Technical Regulation
HALAL FOOD - Part 1 : General Requirements
Recently Published
ISO 3953:2025
International Standard
Metallic powders — Determination of tap density
ISO 24108-1:2025
International Standard
Grid square statistics and their applications — Part 1: Fundamental principle of grid square statistics
ISO 23333:2025
International Standard
Natural gas — Upstream area — Requirements and testing of slick water
ISO 1008:2025
International Standard
Photography — Unprocessed photographic papers — Sheet dimensions