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Description of BS EN ISO 11665-11:2019 2019This part of ISOÂ 11665 describes radon-222 test methods for soil gas using passive and active in-situ sampling at depth comprised between surface and 2Â m. This part of ISOÂ 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 ISOÂ 11665-1). In case of spot measurement methods (ISOÂ 11665-6), the soil gas sampling is active only. On the other hand, the continuous methods (ISOÂ 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 100Â Bq/m3.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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