BS EN ISO 13164-3:2020

WARNING — Persons using this document should be familiar with normal laboratory practice. This document does not purport to address all of the safety problems, if any, associated with its use. It is the responsibility of the user to establish appropriate safety and health practices and to ensure compliance with any national regulatory conditions.

IMPORTANT — It is absolutely essential that tests conducted in accordance with this document be carried out by suitably qualified staff.

This part of ISO 13164 specifies a test method for the determination of radon-222 activity concentration in a sample of water following its transfer from the aqueous phase to the air phase by degassing and its detection. It gives recommendations for rapid measurements performed within less than 1 h.

The radon-222 activity concentrations, which can be measured by this test method utilizing currently available instruments, range from 0,1 Bq l^–1 to several hundred thousand becquerels per litre for a 100 ml test sample.

This test method is used successfully with drinking water samples. The laboratory is responsible for ensuring the validity of this test method for water samples of untested matrices.

This test method can be applied on field sites or in the laboratory.

Annexes A and B give indications on the necessary counting conditions to meet the required sensitivity for drinking water monitoring.

Cross References:
ISO 5667-1
IEC 17025
ISO 13164-1
ISO 80000-10
IEC 61577-1
ISO 11929
IEC 61577-2
ISO 5667-3
ISO 11665-5
ISO 11665-6
ISO 11665-1
IEC Guide 98-3:2008
GUM:1995


Incorporates the following:
Corrigendum, March 2020