ISO/IEC 3788:1990 Preview
Information processing -- 9-track, 12,7 mm (0,5 in) wide magnetic tape for information interchange using phase encoding at 126 ftpmm (3 200 ftpi), 63 cpmm (1 600 cpi)
This standard was last reviewed and confirmed in 2008. Therefore this version remains current.
Provides a format and recording standard for 9-track, 12,7 (0,5 in) wide magnetic tape and reels to be used for information interchange among information processing systems, communication systems, and associated equipment utilizing the 7-bit coded character set specified in ISO 646 or its 7-bit or 8-bit extensions specified in ISO 2022. References: ISO 962; 1001; 1864.