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
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.
| SDO | BSI: British Standards Institution |
| Document Number | ISO 11665-2 |
| Publication Date | Nov. 6, 2019 |
| Language | en - English |
| Page Count | 22 |
| Revision Level | |
| Supercedes | |
| Committee | NCE/2 |