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IEC 61577-2:2014描述了测量户外、室内及包括地下矿井在内的工作场所中气载222Rn与220Rn活度浓度的仪器的特殊要求。本标准实际上适用于所有基于单点测量或连续测量的电子测量仪器。IEC 61577-1规定了用于测量的不同类型仪器。新版本相对前一版本的主要技术修改如下:—增加了有关性能的新要求和试验;—有关性能的要求和试验与这个领域的其他标准相符合。
IEC 61577-2: 2014 describes specific requirements for instruments that measure the concentration of airborne 222Rn and 220Rn activity in the workplace, outdoors, indoors, and in underground mines, including underground mines. This standard is actually applicable to all single-point measurement or continuous measurement of electronic measuring instruments. IEC 61577-1 specifies different types of instruments for measurement. The main technical changes from the previous version of the new version are as follows: - New requirements and tests regarding performance are added; - Performance requirements and tests are in line with other standards in this area.