Communication aids for blind persons. Identifiers, names and assignation to coded character sets for 8-dot Braille characters. Part 1. General guidelines for Braille identifiers and shift marks
NORMA vydána dne 1.6.2021
Designation standards: GOST R 59230-2020
Publication date standards: 1.6.2021
The number of pages: 28
Approximate weight : 84 g (0.19 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST