
Ophthalmic optics and instruments. Near reading charts.
STANDARD published on 22.2.2024
Designation standards: BS EN ISO 7921:2024
Publication date standards: 22.2.2024
The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 19449 4 Status: Definitive