GB/T 12823-1991
摄影密度测量的术语、符号、坐标系和函数表示法
Terms,symbols,coordinate system and functional notations for photographic density measurements
- 实施日期
- 1992-03-01
- ICS 分类
- 37.040
组合使用关键词、标准类型、状态与 ICS 分类,快速定位所需国家标准。
找到 171 条
GB/T 12823-1991
Terms,symbols,coordinate system and functional notations for photographic density measurements
GB/T 12822-1991
Geometric conditions for photographic reflection density measurement
GB/T 11501-1989
Spectral conditions for measuring photographydensity
GB/T 11500-1989
Geometric conditions for measuring transmission density
GB/T 9863-1988
Method for determining the speed of colour reversal camera films
GB/T 9862-1988
Method for determining the speed and average gradient of black-and-white aerial camera films
GB 9316-1988
Safety requirements for electronic flash apparatus for photographic purposes
GB/T 9048-1988
Image area produced by 65mm and 70mm motion-picture camera aperture and maximum projectable image area on 70mm motion-picture prints--Positions and dimensions
GB/T 7700-1987
Bobbins for 16mm motion picture projectors--Dimentions
GB/T 7553-1987
35mm Camera test chart target
GB 6962-1986
Aerial photographic specification for 1:500, 1:1000, 1:2000 scale topographic maps