Standard [WITHDRAWN] 2011-05
This standard specifies a measuring system for spectacle frames. It is applicable to all types of spectacle frames, the fronts of which are intended to be symmetrical. With respect to the edition 2002-06 which has been valid so far, supplements and specifications with regard to spectacle frames having a significant face form angle have been incorporated. The International Standard has been prepared by ISO/TC 172/SC 7 "Ophthalmic optics and instruments" (secretariat: DIN). The responsible Working Committee at DIN is NA 027-01-08 AA "Augenoptik" ("Ophthalmic optics"), Working Group "Brillenfassungen" ("Spectacle frames") at NAFuo.