Home / Standards / GB/T 42557-2023 GB/T 42557-2023 Active Technical specifications of electromagnetic environmental protection for radio telescopes 射电望远镜电磁环境保护技术规范 Standard Type GBT ICS 07.040 CCS M35 Status 现行 Issue Date 2023-05-23 Implementation 2023-12-01 Responsible Dept 国家标准委 Drafting Unit N/A