ISO 13164-4:2023

ISO 13164-4:2023

July 2023
International standard Current

Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting

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.

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Main informations

Collections

International ISO standards

Thematics

QSE, Gestion des risques et SST, Sécurité

Publication date

July 2023

Number of pages

16 p.

Reference

ISO 13164-4:2023

ICS Codes

13.060.60   Examination of physical properties of water
17.240   Radiation measurements
13.280   Radiation protection

Print number

1
Sumary
Water quality - Radon-222 - Part 4: Test method using two-phase liquid scintillation counting

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.

Replaced standards (1)
ISO 13164-4:2015
June 2015
International standard Cancelled
Water quality - Radon-222 - Part 4 : test method using two-phase liquid scintillation counting

ISO 13164-4:2015 describes a test method for the determination of radon-222 (222Rn) activity concentration in non-saline waters by extraction and liquid scintillation counting. The radon-222 activity concentrations, which can be measured by this test method utilizing currently available instruments, are at least above 0,5 Bq l−1 for a 10 ml test sample and a measuring time of 1 h. This test method can be used successfully with drinking water samples and 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.

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