DIN EN ISO 9342-2:2006-02 Optics and optical instruments - Test lenses for calibration of focimeters - Part 2: Test lenses for focimeters used for measuring contact lenses (ISO 9342-2:2005); German version EN ISO 9342-2:2005
2006DIN EN ISO 9342-2:2006-02 Optics and optical instruments - Test lenses for calibration of focimeters - Part 2: Test lenses for focimeters used for measuring contact lenses (ISO 9342-2:2005); German version EN ISO 9342-2:2005
2006DIN 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 (ISO 9342-2:2005);English version of DIN EN ISO 9342-2:2006-02