DIN EN ISO 9342-1-2005 光学和光学仪器.焦距计校正用检验透镜.第1部分:眼镜镜片测量用焦距计的检验透镜
Optics and optical instruments - Test lenses for calibration of focimeters - Part 1: Test lenses for focimeters used for measuring spectacle lenses (ISO 9342-1:2005); German version EN ISO 9342-1:2005