CGSB 72.12-1981 标准详情
- 标准号:CGSB 72.12-1981
- 中文标题:
- 英文标题:Microcopying Of Technical Drawings - Quality Criteria And Control
- 标准类别:加拿大通用CGSB局CGSB
- 发布日期:
Gives methods for maintaining and checking the reproducibility and quality of black and white silver-image film microfilms. Gives requirements for image quality for the first, second and third generation silver copies, performance and quality.
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