辐射防护仪表.氡和氡降解产品的测量仪器.第3部分:氡降解产品的测量仪器的特殊要求

[中文适用范围]： IEC 61577 的这一部分描述了测量空气中短寿命氡衰变产物的体积活度和/或其室外@住宅@和工作场所（包括地下矿井）的环境潜在α能量浓度的仪器的具体要求。本标准适用于基于抓样@连续采样技术和电子积分测量方法的各类电子仪器。采样装置@例如过滤装置@保留的活性的测量可以在采样期间或在收集周期完成之后进行。 IEC 61577-1 中规定了用于测量的不同类型的仪器。 [外文原描述]： IEC 61577-3:2011 describes the specific requirements for instruments measuring the volumetric activity of airborne short-lived radon decay products and/or their ambient potential alpha-energy concentration outdoors, in dwellings, and in workplaces including underground mines. This standard applies practically to all types of electronic instruments that are based on grab sampling, continuous sampling technique and electronic integrating measurement methods. This new edition includes the following significant technical changes with respect to the previous edition: - implementation of new requirements and tests concerning radiation detection performance; - implementation of new requirements and tests concerning environmental performance; - harmonization of the requirements and tests concerning electrical and mechanical performance with other standards in the area of radiation protection instrumentation.