Radiation protection instrumentation - Radon and radon decay product measuring instruments - Part 3: Specific requirements for radon decay product measuring instruments (IEC 61577-3:2011, modified); German version EN 61577-3:2014
辐射防护仪器.氡和氡衰变产物测量仪器.第3部分:氡衰变产物测量仪器的特殊要求(IEC 61577-3-2011 修改);德文版EN 61577-3:2014