GOST 20958-1980 Unrecorded 12,7 mm magnetic tapes with bobbin for computers. General specifications
GOST 25752-1983 Computer machines and data processing systems. Magnetic 12,7 mm tapes and recording. Structure and file labelling
GOST 27463-1987 Information processing systems. 7-Bit coded character sets
GOST 27466-1987 Information processing systems. 7-bit and 8-bit coded character sets. Code extension techniques
ISO 5652:1984 Information processing; 9-Track, 12,7 mm (0.5 in) wide magnetic tape for information interchange; Format and recording, using group coding at 246 cpmm (6 250 cpi)
GOST 28123-1989 history
1989GOST 28123-1989 Information processing systems. 12,7-mm 9-track magnetic tapes with the density of recording 246 bit/mm. Technical requirements