GB/T 13163.4-2014
辐射防护仪器 氡及氡子体测量仪 第4部分:含氡同位素及其子体参考大气的产生设备(氡环境试验系统)
Radiation protection instrumentation.Radon and radon decay product measuring instruments.Part 4: Equipment for the production of reference atmospheres containing radon isotopes and their decay products (STAR)