ISO/IEC 9529-1:1989 Preview
Information processing systems -- Data interchange on 90 mm (3,5 in) 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 standard was last reviewed and confirmed* in 2006.
*Therefore this version remains current
Specifies the dimensional, physical and magnetic characteristics of the 90 mm (3,5 in ) flexible disk cartridge using modified freqency modulation recording at 15 916 ftprad on 80 tracks on each side, so as to provide physical interchangeability between data processing systems. References: ISO 683-13; ISO 9293.