Home / Standards / GB/T 6996.2-1986 GB/T 6996.2-1986 Abolished Linear test chart A of transparencies for television 透射式电视线性测试图 A型 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