NF S12-134-2*NF EN ISO 9342-2:2006 Optics and optical instruments - Test lenses for calibration of focimeters - Part 2 : test lenses for focimeters used for measuring contact lenses.
2006NF S12-134-2*NF EN ISO 9342-2:2006 Optics and optical instruments - Test lenses for calibration of focimeters - Part 2 : test lenses for focimeters used for measuring contact lenses.