Gost R 52131 2003 ◎

Guidelines for Braille characters and relief symbols.

The standard specifies how information should be presented to be accessible to various mobility and sensory groups: 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 Guidelines for Braille characters and relief symbols