Home / Standards / GB/T 12857-1991 GB/T 12857-1991 Active Methods of measurement under conditions different from broadcast signal standards on receivers for television broadcast transmissions 电视广播接收机在非标准广播信号条件下的测量方法 Standard Type GBT ICS 33.160.20 CCS M74 Status 现行 Issue Date 1991-04-28 Implementation 1991-12-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A