Information Systems - Magnetic Tape Cassettes for Information Interchange - 3.81 -mm (0.150-in) Tape at 32 bpmm (800 bpi), Phase Encoded formerly ANSI X3.48-1986
This American National Standard for unrecorded and recorded cassettes containing 3.81-mm (0.150-in) -wide magnetic tape presents the minimum requirements for mechanical and magnetic interchangeability of the cassette and for data interchange between information processing systems, which are capable of utilizing a standard code for information interchange as agreed upon by the interchange parties, using a data density of 32 bpmm (800 bpi).