UNE 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 (ISO/TS 11665-12:2018) (Endorsed by Asociación Española de Normalización in June of 2021.)
Medición de la radiactividad en el ambiente. Aire: radón-222. Parte12: Determinación del coeficiente de difusión en materiales impermeables: método de medición de la concentración de actividad de un lado de la membrana (ISO/TS 11665-12:2018) (Ratificada por la Asociación Española de Normalización en junio de 2021.)
| Označení normy: | UNE CEN ISO/TS 11665-12:2021 |
| Počet stran: | 37 |
| Vydáno: | 2021-06-01 |
| Status: | Norma |
UNE CEN ISO/TS 11665-12:2021
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 %.