Home / Standards / GB/T 4645-1994 GB/T 4645-1994 Abolished Screen luminance for the projection of motion-picture prints in indoor theatres and review rooms 室内影院和鉴定放映室的银幕亮度 Standard Type GBT ICS 37.060.10 CCS A15 Status 废止 Issue Date 1994-12-28 Implementation 1995-08-01 Responsible Dept 广电总局 Drafting Unit N/A