This standard BS EN ISO 11380:1997 Optics and optical instruments. Ophthalmic optics. Formers is classified in these ICS categories:
11.040.70 Ophthalmic equipment
This International Standard specifies the characteristics of formers which are used in edging machines to edge lenses designed for insertion into spectacle frames.
It is not applicable to separate formers required for supplementary treatment of lenses, for example facetting.
