Home / Standards / GB/T 13919-2015 GB/T 13919-2015 Active 35mm cinematography—Technical specification of magnetic sound test film 35mm电影 磁性声带检验片技术规范 Standard Type GBT ICS 37.060.20 CCS N44 Status 现行 Issue Date 2015-12-10 Implementation 2016-07-01 Responsible Dept 中国机械工业联合会 Drafting Unit N/A