ISO 3563:1976 Preview
Information processing -- Interchangeable magnetic single-disk cartridge (top loaded) -- Track format
This standard was last reviewed and confirmed* in 2010.
*Therefore this version remains current
Specifies the track format characteristics for the single-disk cartridge (top loaded) used for data interchange. The 7-bit coded character set (see ISO 646) has been adopted, though the 7-bit or 8-bit extensions specified in ISO 2022 may be used.