NF ISO 9282-1-1990

信息技术.图象的代码表示法:第1部分:7位或8位图象表示用编码原则

Information processing. Coded representation of pictures. Part 1 : encoding principles for picture representation in a 7-bit or 8-bit environment.

中国标准分类号： L(电子元器件与信息技术) ； L71(编码、字符集、字符识别)

NF Z62-821-1990

Information processing. Coded representation of pictures. Part 1 : encoding principles for picture representation in a 7-bit or 8-bit environment.

NF EN 28378-1-1989

Informating processing. Data interchange on 130 mm (5.25 in) flexible disk cartridges using modified frequency modulation recording at 7 958 ftprad, 3.8 tpmm (96 tpi), on both sides. Part 1 : dimensional, physical and magnetic characteritics.

NF EN 28860-1-1989

Information processing. Data interchange on 90 mm (305 in) flexible disk cartridges using modified frequency modulation recording at 7 958 ftprad on 80 tracks on each. Part 1 : dimensional, physical and magnetic characteristics.