4ISO 9342 - 1, Ophthalmic optics and optical instruments Test lenses for calibration of focimeters Part 1 : Test lenses for focimeters used for measuring spectacle lenses[S]. 2005
5ISO 9342 - 2, Ophthalmic optics and optical instruments Test lenses for calibration of focimeters Part 2 : Test lenses for focimeters used for measuring contact lenses[S]. 2005
