Cover DIN EN ISO 11665-7 VDE 0493-1-6657:2015-11
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DIN EN ISO 11665-7 VDE 0493-1-6657:2015-11

* German Language Version *

Measurement of radioactivity in the environment – Air: radon-222

Part 7: Accumulation method for estimating surface exhalation rate

(ISO 11665-7:2012); German version EN ISO 11665-7:2015
Class/Status: Standard, valid
Released: 2015-11
VDE Art. No.: 0400166

Contents

This standard gives guidelines on estimating the radon-222 surface exhalation rate at a given point, at the interface of the medium (soil, rock, laid building material, wall, etc.) and the atmosphere. This estimation is based on measuring the radon activity concentration emanating from surface in question and accumulated in a known useful volume in a given time.