ISO 18369-4-2017 眼科光学--隐形眼镜--第4部分：隐形眼镜材料的理化性质 Ophthalmic optics — Contact lenses — Part 4: Physicochemical properties of contact lens materials

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.nd edition 2017-08 Ophthalmic optics — Contact lenses — Part 4: Physicochemical properties of contact lens materials Optique ophtalmique — Lentilles de contact — Partie 4: Propriétés physicochimiques des matériaux des lentilles de contact Reference number ISO 18369-4:2017(E) ？ ISO 2017 ISO 18369-4:2017(E) COPYRIGHT PROTECTED DOCUMENT ？ ISO 2017, Publ