Home / Standards / GB/T 6996.11-1986 GB/T 6996.11-1986 Abolished Circular zone test chart of transparencies for television 透射式电视区域测试图 Standard Type GBT ICS 33.140 CCS M70 Status 废止 Issue Date 1986-11-20 Implementation 1987-10-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A