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ČSN EN ISO 11665-7 (404013)
Measurement of radioactivity in the environment - Air: radon-222 - Part 7: Accumulation method for estimating surface exhalation rate
Automatically translated name:
Measurement of radioactivity in the environment - Air: Radon 222 - Part 7: The storage method for estimating the rate of radon exhalation from the surface (standard for direct use as CSN).
STANDARD published on 1.4.2016
The information about the standard:
Designation standards: ČSN EN ISO 11665-7
Classification mark: 404013
Catalog number: 99184
Publication date standards: 1.4.2016
SKU: NS-634893
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN ISO 11665-7 (404013):
This part of ISO 11665 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. This part of ISO 11665 is particularly applicable, however, in case of an investigation, a search for sources or a comparative study of exhalation rates at the same site. This part of ISO 11665 does not cover calibration conditions for the rate estimation devices. The measurement method described is applicable for radon exhalation rates greater than 5 mBq/m2/s
Preview of the standard ČSN EN ISO 11665-7 (404013)
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