International Organization for Standardization (ISO)
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ISO 7565:1993
Scope
Specifies methods and instruments for measuring the characteristics for readers specified in ISO 6198. Applies to magnification, resolution, distortion, screen luminance, screen contrast and film gate temperatures. Annex A deals with the importance of the luminance measurement, Annex B gives a field method using a luxmeter.
ISO 7565:1993 history
1993ISO 7565:1993 Micrographics; readers for transparent microforms; measurement of characteristics