ISO 13165-2:2022

Water quality — Radium-226 — Part 2: Test method using emanometry


This document specifies a test method to determine radium-226 (226Ra) activity concentration in all types of water by emanometry.

The test method specified is suitable for the determination of the soluble, suspended and total 226Ra activity concentration in all types of water with soluble 226Ra activity concentrations greater than 0,02 Bq l-1.

The decay chains of 238U and 232Th are given in Annex A. Figure A.1 shows the 238U and its decay chain.




Status Current
Edition 2022
No. of Pages 16
ICS Classification 13.060.60 Examination of physical properties of water
17.240 Radiation measurements
Committee ISO/TC 147/SC 3
Available for Purchase For sale in Singapore only
Adoption ISO