BS 2738-4(1992) : 1992被替代
SPECTACLE LENSES - SPECIFICATION FOR SINGLE-VISION AND MULTIFOCAL SEMI-FINISHED LENS BLANKS
出版：British Standards Institution
专家解读视频
基本信息
标准编号： BS 2738-4(1992) : 1992
发布时间：1992/1/1 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：12
标准简介
Specifies requirements for the geometric and optical properties of semi-finished single vision and multifocal lens blanks. Coverage includes definitions, classification, test methods and identification. Also includes tables and diagrams.
