
Tracked Changes. Ophthalmic optics. Mounted spectacle lenses.
STANDARD published on 25.2.2020
Designation standards: BS EN ISO 21987:2017-TC
Publication date standards: 25.2.2020
The number of pages: 70
Approximate weight : 210 g (0.46 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 08473 3 Status: Revision Underway