China 'GB/T 12857-1991
' standard english version:
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 12857-1991
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
Issued Date:1991-04-28
Implemented Date:1991-12-01
Issued by:
The Standardization Administration of the People's Republic of China