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ISO 11665-7:2012

Current Revision

Measurement of radioactivity in the environment - Air: radon-222 - Part 7: Accumulation method for estimating surface exhalation rate

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ISO 11665-7:2012 gives guidelines for estimating the radon-222 surface exhalation rate over a short period (a few hours), at a given place, at the interface of the medium (soil, rock, laid building material, walls, etc.) and the atmosphere. This estimation is based on measuring the radon activity concentration emanating from the surface under investigation and accumulated in a container of a known volume for a known duration.

This method is estimative only, as it is difficult to quantify the influence of many parameters in environmental conditions. ISO 11665-7:2012 is particularly applicable, however, in case of an investigation, a search for sources or a comparative study of exhalation rates at the same site. ISO 11665-7:2012 does not cover calibration conditions for the rate estimation devices.


SDO ISO: International Organization for Standardization
Document Number ISO 11665
Publication Date Not Available
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 85/SC 2
Publish Date Document Id Type View
Not Available ISO 11665-7:2012 Revision