ISO 8860-1:1987 信息处理 数据交换用90mm(3.5 in)改进调频记录的密度为7958 ftprad、每面80道软磁盘 第1部分:尺寸、物理性能和磁性能
Information processing; Data interchange on 90 mm (3.5 in) flexible disk cartridges using modified frequency modulation recording at 7 958 ftprad on 80 tracks on each side; Part 1 : Dimensional, physical and magnetic characteristics