Home / Standards / GB/T 42741-2023 GB/T 42741-2023 Active Measuring method for electromagnetic parameters of solid materials using air-freespace 固体材料使用自由空间法的电磁参数测量方法 Standard Type GBT ICS 17.240 CCS K 04 Status 现行 Issue Date 2023-05-23 Implementation 2023-12-01 Responsible Dept 中国电器工业协会 Drafting Unit N/A