Home / Standards / HJ 1157-2021 HJ 1157-2021 Active 环境 辐射剂量率测量技术规范 Standard Type HJ11 ICS N/A CCS N/A Status Active Issue Date 2021-03-19 Implementation 2021-05-01 Centralized Committee 生态环境部 Issuing Authority 生态环境部