Home / Standards / GB 6962-1986 GB 6962-1986 Abolished Aerial photographic specification for 1:500, 1:1000, 1:2000 scale topographic maps 1:500、1:1000、1:2000 比例尺地形图航空摄影规范 Standard Type GB ICS 37.040 CCS A77 Status 废止 Issue Date 1986-10-18 Implementation 1987-06-01 Responsible Dept N/A Drafting Unit N/A