标准摘要
[中文适用范围]： 本部分IEC 61577描述了测量户外、住宅和工作场所（包括地下矿井）空气中222Rn和220Rn活度浓度的仪器的特定要求。本标准适用于所有类型的电子测量仪器，这些仪器基于点测量或连续测量。活度浓度可以通过泵送或扩散含有222Rn和/或220Rn的空气进入检测单元的敏感体积来测量，或者在特定时刻通过采集空气样品（抓取采样）来测量。用于测量的不同仪器类型在IEC 61577-1中说明。本标准不适用于使用活性炭吸附、电子伏特或固态核径迹探测器的仪器。 [外文原描述]： IEC 61577-2:2014 describes the specific requirements for instruments measuring the activity concentration of airborne 222Rn and 220Rn outdoors, in dwellings and in workplaces including underground mines. This standard applies practically to all types of electronic measuring instruments that are based on either spot or continuous measurements. The different types of instrumentation used for measurements are stated in IEC 61577-1. This new edition includes the following significant technical changes with respect to the previous edition: - addition of new requirements and tests concerning performance; - harmonization of the requirements and tests concerning performance with other standards in this area.
英文名称Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 2: Specific requirements for 222Rn and 220Rn measuring instruments