Home / Standards / GB/T 3175.1-1987 GB/T 3175.1-1987 Abolished Reflection colour bar test card 反射式彩条测试图 Standard Type GBT ICS 33.140 CCS M61 Status 废止 Issue Date 1987-03-12 Implementation 1987-11-01 Responsible Dept 广电总局 Drafting Unit N/A