BS EN 21864:1991
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
Information processing. Unrecorded 12,7 mm (0.5 in) wide magnetic tape for information interchange. 32 ftpmm (800 ftpi) NRZ1, 126ftpmm (3 200 ftpi) phase encoded and 356 ftpmm (9 042 ftpi), NRZ1
Hardcopy , PDF
23-07-2013
English
31-01-1992
Characteristics of 12,7 mm wide magnetic tape with reel, to enable mangnetic and mechanical interchangeability of such tape between information processing systems.
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