Home / Standards / NB/T 20231-2013 NB/T 20231-2013 Abolished 压水堆核电厂专设安全设施设计准则 Standard Type NB ICS N/A CCS N/A Status Abolished Issue Date 2013-06-08 Implementation 2013-10-01 Centralized Committee 国家能源局 Issuing Authority 国家能源局