Home / Standards / NB/T 20220-2013 NB/T 20220-2013 Active 轻水冷却反应堆压力容器辐照监督 Standard Type NB ICS N/A CCS N/A Status Active Issue Date 2013-06-08 Implementation 2013-10-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局