Ophthalmic optics - Contact lenses - Part 4: Physicochemical properties of contact lens materials
NORM herausgegeben am 1.3.2018
Designation standards: ČSN EN ISO 18369-4
Classification mark: 195229
Catalog number: 504051
Publication date standards: 1.3.2018
The number of pages: 48
Approximate weight : 144 g (0.32 lbs)
Country: Czech technical standard
Kategorie: Technische Normen ČSN
This document specifies the methods of testing the physicochemical properties of contact lens materials. These are extraction, rigid lens flexure and breakage, oxygen permeability, refractive index and water content