Historical
ISO 18369-4:2006
Ophthalmic optics - Contact lenses - Part 4: Physicochemical properties of contact lens materials
ISO 18369-4:2006 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.
International Organization for Standardization [iso]