Home / Standards / GB/T 31723.405-2026 GB/T 31723.405-2026 Upcoming Metallic communication cable test methods—Part 4-5: Electromagnetic compatibility (EMC)—Screening or coupling attenuation—Absorbing clamp method 金属通信电缆试验方法 第4-5部分:电磁兼容 屏蔽或耦合衰减 吸收钳法 Standard Type GBT ICS 33.120.10 CCS L26 Status 即将实施 Issue Date 2026-03-31 Implementation 2026-10-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A