GB/T 15131.1-1994
信息处理 数据交换用130mm改进调频制记录的位密度为13262磁通翻转/弧度、每面80条磁道的软磁盘 第1部分:尺寸、物理性能和磁性能
Information processing-Data interchange on 130mm(3.5in)flexible disk cartridges using modified frequency modulation recording at 13262 ftprad, on 80 tracks on each side-Part 1:Dimensional, physical and magnetic characteristics
GBT15131.1-1994, GB15131.1-1994