Bulgarian Institute for Standardization
Standards – always a step ahead
Phone: +359 2 8174 523, +359 2 8174 504
E-mail: info@bds-bg.org
1797 Sofia, 13 "Lachezar Stanchev" Str., "Izgrev" Complex
ID number: 175079183, VAT number: BG175079183
Main menu

БДС EN ISO 13164-4:2023

Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting (ISO 13164-4:2023)

Sep 19, 2023

General information

60.60     Sep 19, 2023



European Standard

13.060.60     17.240     13.280  




Language in which you want to receive the document


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.

Life cycle


БДС EN ISO 13164-4:2020


БДС EN ISO 13164-4:2023
60.60 Standard published
Sep 19, 2023

Related project

Adopted from EN ISO 13164-4:2023

Adopted from ISO 13164-4:2023