DIN EN ISO 20045
; VDE 0493-1-45:2024-12
Measurement of the radioactivity in the environment - Air: tritium - Test method using bubbler sampling (ISO 20045:2023, Corrected version 2023-09); German version EN ISO 20045:2024
Bestimmung der Radioaktivität in der Umwelt - Luft: Tritium - Messverfahren mit Sammlung mittels Gaswaschflaschen (ISO 20045:2023, korrigierte Fassung 2023-09); Deutsche Fassung EN ISO 20045:2024
Overview
This document describes a test method to determine the activity concentration of atmospheric tritium by trapping tritium in air by bubbling through a water solution. The sampled air is continuously pumped and converted into small bubbles by a specific generator. The formulae are given for a sampling system with four bubblers. However, they can also be adapted to collectors with only one collection module specifically for activity concentrations of tritiated water vapor in air. This document does not cover results from laboratory samples according to DIN EN ISO 9698 (Water quality - Determination of the activity concentration of tritium - Test method using liquid scintillation counting) or ISO 13168 (Water quality - Simultaneous determination of tritium and carbon 14 activities - Test method using liquid scintillation counting).
Responsible national committee
DKE/GK 851 - Aktivitätsmessgeräte für den Strahlenschutz
Responsible european committee
CEN/TC 430 - Nuclear energy, nuclear technologies, and radiological protection
