Home / Standards / GB 5441.4-85 GB 5441.4-85 Test methods for communication cables—Impedance and internal impedance irregularities of coaxial pairs—Pulse method 通信电缆试验方法 同轴对端阻抗及内部阻抗不均匀性试验 脉冲法 Standard Type GB ICS N/A CCS N/A Status N/A Issue Date N/A Implementation N/A Responsible Dept N/A Drafting Unit N/A