UNE EN ISO 11665-2:2019
Measurement of radioactivity in the environment - Air: radon-222 - Part 2: Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products (ISO 11665-2:2019) (Endorsed by Asociación Española de Normalización in November of 2019.)
Medición de la radiactividad en el ambiente. Aire: radón-222. Parte 2: Método de medición integrada para determinar la concentración promedio de energía potencial alfa de sus productos de desintegración de vida corta. (ISO 11665-2:2019). (Ratificada por la Asociación Española de Normalización en noviembre de 2019.)
| Standard number: | UNE EN ISO 11665-2:2019 |
| Pages: | 23 |
| Released: | 2019-11-01 |
| Status: | Standard |
UNE EN ISO 11665-2:2019
This document describes integrated measurement methods for short-lived radon 222 decay products[4]. It gives indications for measuring the average potential alpha energy concentration of short lived radon-222 decay products in the air and the conditions of use for the measuring devices. This document covers samples taken over periods varying from a few weeks to one year. This document is not applicable to systems with a maximum sampling duration of less than one week. The measurement method described is applicable to air samples with potential alpha energy concentration of short-lived radon-222 decay products greater than 10 nJ/m3 and lower than 1 000 nJ/m3. NOTE For informative purposes only, this document also addresses the case of radon-220 decay products, given the similarity in behaviour of the radon isotopes 222 and 220.