Gost R 52131 2003 (2026)

Guidelines for Braille characters and relief symbols.

Standardized use of colors (e.g., yellow for visually impaired). gost r 52131 2003

Materials must withstand environmental wear and vandalism. Guidelines for Braille characters and relief symbols

Specific contrast ratios, font sizes, and placement heights. gost r 52131 2003

is the Russian national standard for sign aids and information displays for disabled persons . It defines the technical requirements for visual, tactile, and audible signs to ensure an accessible environment. ♿ Key Technical Requirements