BS EN 21864:1994現行
Information technology. Unrecorded 12,7 mm (0,5 in) wide magnetic tape for information interchange. 32 ftpmm (800 ftpi) NRZ1, 126 ftpmm (3 200 ftpi) phase encoded and 356 ftpmm (9 042 ftpi) NRZ1
出版：British Standards Institution
專家解讀視頻
? British Standards Institution 2013
SNV BS EN 21864:1994 - Identical
ONORM EN 21864:1994 - Identical
DIN EN 21864 (1994-05) - Identical
NBN EN 21864:1994 - Identical
NF EN 21864:1994 - Identical
I.S. EN 21864:1994 - Identical
ISO/IEC 1864:1992 - Identical
SS EN 21864 Ed. 1 (1994) - Identical
