DIN EN ISO 18369-4-2018 眼科光学.接触镜片.第4部分:接触镜片材料的物理化学特征(ISO 18369-4-2017,修正版本 2017-10-01);德文版本EN ISO 18369-4-2017
Ophthalmic optics - Contact lenses - Part 4: Physicochemical properties of contact lens materials (ISO 18369-4:2017, Corrected version 2017-10-01); German version EN ISO 18369-4:2017
This standard specifies the methods of testing the physicochemical properties of contact lens materials. These are extractable substances, rigid flexure and breakage, oxygen permeability, refractive index and water content.