Abstract

This part of ISO 13164 specifies a test method for the determination of 222Rn activity concentration in a sample of water by the measurement of its short-lived decay products by direct gamma-spectrometry of a water sample (see Annex A). The 222Rn activity concentrations, which can be measured by this test method utilizing currently available gamma-ray instruments, range from a few becquerels per litre to several hundred thousand becquerels per litre for a 1 l test sample. This test method can be used successfully with drinking water samples. The laboratory is responsible for ensuring the validity of this test method for water samples of untested matrices. Annex B gives indication on the necessary counting conditions to meet the required sensitivity for drinking water monitoring.

Begin

2024-11-28

WI

00230453

Planned document number

DIN EN ISO 13164-2

Project number

11905042

Responsible national committee

NA 119-09-03 AA - Radioactivity measurements in waters  

Responsible european committee

CEN/TC 230 - Water analysis  

Responsible international committee

ISO/TC 147/SC 3/WG 13 - Gamma spectrometry  

previous edition(s)

Water quality - Radon-222 - Part 2: Test method using gamma-ray spectrometry (ISO 13164-2:2013); German version EN ISO 13164-2:2020
2020-12

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