Optics and optical instruments - Contact lenses - Determination of strains for rigid contact lenses (ISO 9340:1996); German version EN ISO 9340:1998— 4 стр.
Optics and optical instruments - Contact lenses - Determination of strains for rigid contact lenses (ISO 9340:1996); German version EN ISO 9340:1998— 4 стр.
Optics and optical instruments - Contact lenses - Part 1: Specification for rigid corneal and scleral contact lenses (ISO 8321-1:1991); German version EN ISO 8321-1:1996— 9 стр.