IEC 61577-3:20 11描述了测量室外、住宅和工作场所（包括地下矿井）空气传播的短寿命氡衰变产物的体积活度和/或其环境潜在α能量浓度的仪器的具体要求。本标准适用于以抓斗取样、连续取样技术和电子积分测量方法为基础的各类电子仪器。与上一版相比，此新版本包括以下重大技术变更: -实施有关辐射探测性能的新要求和测试； -实施有关环境表现的新要求和测试； -使有关电气和机械性能的要求和测试与辐射防护仪器领域的其他标准相协调。

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.