ISO/IEC 9661:1994, Information technology - Data interchange on 12,7 mm wide magnetic tape cartridges - 18 tracks, 1 491 data bytes per millimetre

Cancels and replaces the first edition (1988). Specifies the physical and magnetic characteristics of a 12,7 mm wide, 18 track magnetic tape cartridge to enable interchangeability of such cartridges. Also specifies the quality of the recorded signals, the format and recording method thus allowing, together with ISO 1001 for magnetic tape labelling, full data interchange by means of such magnetic tape cartridges.