BS EN ISO 11665-2:2019
Measurement of radioactivity in the environment. Air: radon-222 Integrated measurement method for determining average potential alpha energy concentration of its short-lived decay products
| Označení normy: | BS EN ISO 11665-2:2019 |
| Počet stran: | 22 |
| Vydáno: | 2019-11-06 |
| ISBN: | 978 0 539 01222 4 |
| Status: | Standard |
BS EN ISO 11665-2:2019
This standard BS EN ISO 11665-2:2019 Measurement of radioactivity in the environment. Air: radon-222 is classified in these ICS categories:
- 17.240 Radiation measurements
- 13.040.01 Air quality in general
This document describes integrated measurement methods for short-lived radonâ??222 decay products[ 4]. It gives indications for measuring the average potential alpha energy concentration of shortâ??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.
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.