Ophthalmic optics - Semi-finished spectacle lens blanks - Part 2: Specifications for progressive-power and degressive-power lens blanks (ISO/DIS 10322-2.2:2015); German version prEN ISO 10322-2:2015
Ophthalmic optics - Semi-finished spectacle lens blanks - Part 2: Specifications for progressive-power and degressive-power lens blanks (ISO 10322-2:2016); German version EN ISO 10322-2:2016— 16 стр.