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prБДС CEN ISO/TS 11665-12:2021

Measurement of radioactivity in the environment — Air: radon-222 — Part 12: Determination of the diffusion coefficient in waterproof materials: membrane one-side activity concentration measurement method

General information

60.55     Apr 12, 2021




Technical Specification

13.040.01     17.240  


This document specifies the method intended for assessing the radon diffusion coefficient in waterproofing materials such as bitumen or polymeric membranes, coatings or paints, as well as assumptions and boundary conditions which will be met during the test.
The test method described in this document allows to estimate the radon diffusion coefficient in the range of 10-5 m2/s to 10-12 m2/s[8][9] with an associated uncertainty from 10 % to 40 %.

Life cycle


prБДС CEN ISO/TS 11665-12:2021
60.55 Ratification completed (DOR)
Apr 12, 2021

Related project

Adopted from CEN ISO/TS 11665-12:2021

Adopted from ISO/TS 11665-12:2018


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