ISO 9848-1993 标准详情
- 标准号:ISO 9848-1993
- 中文标题:摄影技术.原始文件缩微胶片.iso感光速度和iso平均对比度的测定
- 英文标题:photography - source document microfilms - determination of iso speed and iso average gradient first edition; corrigendum 1-1994
- 标准类别:国际标准化组织标准ISO
- 发布日期:1993-01-01
The method of determination specified is based on exposing and processing samples, measuring density from the resultant images to produce a sensitometric curve from which values are taken and used to determine ISO speed and ISO average gradient. Appl
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