ISO/IEC 12248:1993 Preview
Information technology -- 3,81 mm wide magnetic tape cartridge for information interchange -- Helical scan recording -- DATA/DAT-DC format using 60 m and 90 m length tapes
Specifies the physical and magnetic characteristics. Also specifies the quality of the recorded signals, the recorded format and the recording method, thereby allowing data interchange between drives by means of such magnetic tape cartridges. Specifies two types of cartridges referred to as type A (magnetic tape of nominal thickness of 13 µm and a nominal length of up to 60,5 m) and type B (magnetic tape of a nominal thickness of 9 µm and a nominal length of up to 92,0 m).