Assistive products for blind and vision-impaired persons. Tactile walking surface indicators.
STANDARD published on 25.1.2019
Designation standards: BS ISO 23599:2019
Publication date standards: 25.1.2019
The number of pages: 50
Approximate weight : 150 g (0.33 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 01342 9 Status: Under Review