ISO 13164-4:2023
This document describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting.
The 222Rn activity concentrations, which can be measured by this test method utilizing currently available instruments, are above 0,5 Bq·l−1 which is the typical detection limit for a 10 ml test sample and a measuring time of 1 h.
It is the responsibility of the laboratory to ensure the validity of this test method for water samples of untested matrices.
Annex A gives indication on the necessary counting conditions to meet the required detection limits for drinking water monitoring.
OEN:
ISO
Langue:
English
Code(s) de l'ICS:
13.060.60;
13.280;
17.240
Statut:
Publié
Date de Publication:
2023-07-19
Numéro Standard:
ISO 13164-4:2023