DIN EN ISO 8980-3-2005 眼科光学.未切边成品眼镜片.第3部分:透光性规范和试验方法
Ophthalmic optics - Uncut finished spectacle lenses - Part 3: Transmittance specifications and test methods (ISO 8980-3:2003); German version EN ISO 8980-3:2004
Specification of transmisison requirements for uncut finished spectacle lenses. Excluded: Spectacle lenses having particular transmittance or absorption characteristics prescribed for medical reasons; specific protective sunglasses and ski goggles and sunglasses of nominally plano power for general use.