Information processing systems — Data interchange on 90 mm flexible disk cartridges using modified frequency modulation recording at 15 916 ftprad, on 80 tracks on each side — Part 1: Dimensional, physical and magnetic characteristics
This part of ISO/IEC 9529 specifies the dimensional, physical and magnetic characteristics of the cartridge, so as to provide physical interchangeability between data processing systems.
NOTE — Numeric values in the SI and/or Imperial measurement system in this part of ISO/IEC 9529 mayihave been rounded off and therefore are consistent with, but not exactly equal to, each other. Either system may be used, buflhe two should be neither intermixed nor reconverted. The original design was made using SI units.