標準號：ISO 8630-2-1987
中文標準名稱：信息處理 數據交換用130mm(5.25 in)改進調頻制記錄,密度為13262 ftrad、每面80道的軟盤 第2部分:用作77道的磁道格式A
英文標準名稱：Information processing; Data interchange on 130 mm (5.25 in) flexible disk cartridges using modified frequency modulation recording at 13 262 ftprad, on 80 tracks on each side; Part 2 : Track format A for 77 tracks
標準類型：L64
發布日期：1999/12/31 12:00:00
實施日期：1999/12/31 12:00:00
中國標準分類號：L64
國際標準分類號：35.220.21
適用范圍：This part of ISO 8630 specifies the quality of recorded signals, the track layout, and a track format to be used on 130 mm (5.25 in), 13 262 ftprad flexible disk cartridges intended for data interchange between data processing systems. NOTE — Numeric values in the SI and/or Imperial measurement system in this part of ISO 8630 may have been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, but the two should be neither intermixed nor re-converted. The original design was made using Imperial units and further developments were made using SI units.