Home / Standards / GB/T 4638-1997 GB/T 4638-1997 Active Picture image area and photographic sound record on 35mm motion-picture release prints--Position and dimensions 35mm电影发行拷贝上画面和光学声迹的位置和尺寸 Standard Type GBT ICS 37.060.20 CCS A15 Status 现行 Issue Date 1997-06-28 Implementation 1998-03-01 Responsible Dept 国家电影局 Drafting Unit 国家电影局