Water quality - Radon-222 - Part 2: Test method using gamma-ray spectrometry (ISO/DIS 13164-2:2026)

Comment end date 2026-07-30

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Project stage codes

1. Prioritetinių darbo temų pažymėjimas ir ekspertų skyrimas

2. Projektas

3. Viešoji apklausa

From 2026-06-23 till 2026-07-30

4. Closure of enquiry

5. Submission to Formal Vote

Organisation

CEN Europos standartizacijos komitetas

ICS

17.240 - Radiation measurements

Technical Committee

TK 36 Environmental protection

ForeignTC'S

CEN/TC 230

Number of comments

Comment start date

2026-06-23

Scope

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.

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Pakeis

prEN ISO 13164-2