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ČSN EN ISO 11665-11 (404013)
Measurement of radioactivity in the environment - Air: radon-222 - Part 11: Test method for soil gas with sampling at depth
Translate name
STANDARD published on 1.4.2020
The information about the standard:
Designation standards: ČSN EN ISO 11665-11
Classification mark: 404013
Catalog number: 509253
Publication date standards: 1.4.2020
SKU: NS-989682
The number of pages: 40
Approximate weight : 120 g (0.26 lbs)
Country: Czech technical standard
Category: Technical standards ČSN
The category - similar standards:
Annotation of standard text ČSN EN ISO 11665-11 (404013):
This part of ISO 11665 describes radon-222 test methods for soil gas using passive and active in-situ sampling at depth comprised between surface and 2 m. This part of ISO 11665 gives general requirements for the sampling techniques, either passive or active and grab or continuous, for in-situ radon-222 activity concentrations measurement in soil gas. The radon-222 activity concentration in the soil can be measured by spot or continuous measurement methods (see ISO 11665-1). In case of spot measurement methods (ISO 11665-6), the soil gas sampling is active only. On the other hand, the continuous methods (ISO 11665-5) are typically associated with passive soil gas sampling. The measurement methods are applicable to all types of soil and are determined according to the end use of the measurement results (phenomenological observation, definition or verification of mitigation techniques, etc.) taking into account the expected level of the radon-222 activity concentration. These measurement methods are applicable to soil gas samples with radon activity concentrations greater than 100 Bq/m3
Preview of the standard ČSN EN ISO 11665-11 (404013)
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