ISO 11665-7:2012

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

Publication date: Jul 13, 2012

General information

Current stage: 90.93 Effective date: Jun 5, 2018

Originator: ISO

Owner: ISO/TC 85/SC 2

Type: International Standard

ICS: 13.040.01 17.240

Languages: English French

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Status: Published

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Scope

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.

Life cycle

NOW

PUBLISHED
ISO 11665-7:2012
90.93 Standard confirmed
Jun 5, 2018

REVISED BY

IN_DEVELOPMENT
ISO/PWI 11665-7

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