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| Standard Code | Standard Title | Standard Class | Order |
|---|---|---|---|
| GB/T 23901.5-2019 |
Non-destructive testing—Image quality of radiographs—Part 5: Determination of the image unsharpness and basic spatial resolution value using duplex wire-type image quality indicators 无损检测 射线照相检测图像质量 第5部分：双丝型像质计图像不清晰度的测定 |
China National Standards sharpness |
 English PDF |
| GB/Z 34447-2017 |
Sharp edge testing apparatus and test procedure for lighting equipment—Tests for sharpness of edge 照明设备的锐边试验装置和试验程序 锐边试验 |
China National Standards sharpness |
English PDF |
| GB/T 33838-2017 |
Microbeam analysis—Scanning electron microscopy—Methods of evaluating image sharpness 微束分析 扫描电子显微术 图像锐度评估方法 |
China National Standards sharpness |
English PDF |
| GB/T 31702-2015 |
Testing method for sharpness of attached components on textile products 纺织制品附件锐利性试验方法 |
China National Standards sharpness |
English PDF |
| GB/T 23901.5-2009 |
Non-destructive testing - Image quality of radiographs - Part 5: Image quality indicators (duplex wire type) - Determination of image unsharpness value 无损检测 射线照相底片像质 第5部分：双线型像质计 图像不清晰度的测定 |
China National Standards sharpness |
English PDF |
| GB/T 19896-2005 |
Degrees of projected image sharpness for 70,35and 16mm motion-picture projection systems 70、35和16mm电影放映系统 画面清晰度等级 |
China National Standards sharpness |
English PDF |
| GB/T 4506-1984 |
Method for the test of sharpness and strengthof needles tips 针尖锋利度和强度试验方法 |
China National Standards sharpness |
English PDF |
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