02. EN ISO 8980-3:2004 Ophthalmic optics. Uncut finished spectacle lenses. Transmittance specifications and test methods. European Committee for Standardization/ International Organization for Standardization

02. EN ISO 8980-3:2004 Ophthalmic optics. Uncut finished spectacle lenses. Transmittance specifications and test methods. European Committee for Standardization/ International Organization for Standardization