Ophthalmic optics - Uncut finished spectacle lenses - Part 1: Specifications for single-vision and multifocal lenses (ISO/DIS 8980-1:2016); German and English version prEN ISO 8980-1:2016
Ophthalmic optics - Uncut finished spectacle lenses - Part 1: Specifications for single-vision and multifocal lenses (ISO 8980-1:2017); German version EN ISO 8980-1:2017— 20 стр.