ISO 1073-2:1976 Preview
Alphanumeric character sets for optical recognition -- Part 2: Character set OCR-B -- Shapes and dimensions of the printed image
This standard was last reviewed and confirmed* in 2010.
*Therefore this version remains current
Indicates the forms of printed images and the sizes of alphanumeric characters as well as the sings and graphical symbols (OCR-B-character set) intended for optical character reading according to ISO 646-1973.