BS 4191:1976被替代
Specification for microform readers
出版：British Standards Institution
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基本信息
标准编号： BS 4191:1976
发布时间：1976/6/30 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：10
标准简介
Requirements for rear-projection readers for microfiche and microfilm in roll form, film strips, aperture cards and jackets. Methods for determining resolution and measuring magnification.
标准备注
© British Standards Institution 2013
Amendment notes:
AMD 4605 published 31 October 1984
