ISO 11665的这一部分描述了使用被动和主动原位法对土壤气体进行氡-222测试的方法 在地表和2m之间的深度取样。 ISO 11665的本部分给出了被动或主动取样技术的一般要求 抓取或连续，用于土壤气体中氡-222活度浓度的原位测量。 土壤中的氡-222活性浓度可以通过现场测量或连续测量来测量 方法（见ISO 11665-1）。对于现场测量方法（ISO 11665-6），土壤气体取样 仅处于活动状态。另一方面，连续法（ISO 11665- 5） 通常与 被动土壤气体取样。 测量方法适用于所有类型的土壤，并根据最终结果确定 使用测量结果（现象学观察、定义或验证缓解措施） 技术等），考虑到氡-222放射性浓度的预期水平。 这些测量方法适用于具有氡活性浓度的土壤气体样品 大于100 Bq/m3。 注:ISO 11665的这一部分是对ISO 11665-7中氡土壤特性的补充 潜在的交叉引用:ISO 11665- ISO 11665-6ISO 11929ISO 10381-7ISO 11665-5IEC 61577-2GUM:1995IEC 61577-1ISO/IEC指南98-3:2008包含以下内容:勘误表，2019年11月

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. NOTE This part of ISO 11665 is complementary with ISO 11665-7 for characterization of the radon soil potential.Cross References:ISO 11665-1ISO 11665-6ISO 11929ISO 10381-7ISO 11665-5IEC 61577-2GUM:1995IEC 61577-1ISO/IEC Guide 98-3:2008Incorporates the following:Corrigendum, November 2019