Home / Standards / GB 5441.7-85 GB 5441.7-85 Test methods for communication cables — Attenuation constant test — Open and short circuit method 通信电缆试验方法 衰减常数试验 开短路法 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