
Tracked Changes. Optics and optical instruments. Test lenses for calibration of focimeters. Reference lenses for focimeters used for measuring spectacle lenses.
STANDARD published on 25.7.2023
Designation standards: BS EN ISO 9342-1:2023-TC
Publication date standards: 25.7.2023
The number of pages: 62
Approximate weight : 186 g (0.41 lbs)
Country: British technical standard
Category: Technical standards BS
ISBN: 978 0 539 27909 2 Status: Definitive