I.S. EN 21864:1994废止
Information Technology - Unrecorded 12.7 Mm (0.5 In) Wide Magnetic Tape For Information Interchange - 32 Ftpmm (800 Ftpi) Nrz1, 126 Ftpmm (3200 Ftpi) - Phase Encoded And 356 Ftpm (9042 Ftpi) Nrz1
出版：National Standards Authority of Ireland
专家解读视频
Specifies the characteristics of 127 mm (0.5 in) wide magnetic tape with reel, to enable magnetic and mechanical interchangeability of such tape between information processing systems.
ISO/IEC 1864:1992 - Identical
NF EN 21864:1994 - Identical
NBN EN 21864:1994 - Identical
BS EN 21864:1994 - Identical
DIN EN 21864 (1994-05) - Identical
ONORM EN 21864:1994 - Identical
SS EN 21864 Ed. 1 (1994) - Identical
