SS EN 21864 Ed. 1 (1994)废止
Information Processing - Unrecorded 12,7 Mm Wide Magnetic Tape For Information Interchange - 32 Ftpmm Nrz1, 126 Ftpnn Phase Encoded And 356 Ftpmm Nrz1
出版：Standardiserings-Kommissionen I Sverige
专家解读视频
Describes the characteristics of 12,7mm wide magnetic tape with reel, to enable magnetic and mechanical interchangeability between information processing systems. Applies solely to magnetic tape for digital recording using the NRZ1 method of recording at 32 and 356 ftpmm or the phase-encoded method of recording at 126 ftpmm in which the direction of magnetization is nominally longitudinal.
ONORM EN 21864:1994 - Identical
DIN EN 21864 (1994-05) - Identical
BS EN 21864:1994 - Identical
NBN EN 21864:1994 - Identical
NF EN 21864:1994 - Identical
I.S. EN 21864:1994 - Identical
