DIN EN ISO 8980-1:2017-12 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
2017DIN EN ISO 8980-1:2017-12 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
2017DIN EN ISO 8980-1:2017 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
2004DIN EN ISO 8980-1:2004 Ophthalmic optics - Uncut finished spectacle lenses - Part 1: Specifications for single-vision and multifocal lenses (ISO 8980-1:2004); German version EN ISO 8980-1:2004