重氮拷贝片的密度控制

Density Control for Diazo Print Film

国家标准GB／T13984-92《缩微摄影技术-重氮和微泡胶片视觉密度规范》对重氮拷贝片的视觉密度值做了明确的规定。本文讨论了这些规定的理论依据，以及实际操作中应当注意的问题。

National Standard GB/T 13984-92 'Microphotography Technique-Standard for Visual Density of Diazo and Vesicular Films' clearly defined the values of visual density for diazo print films.This paper presents a discussion on the theoretical background of the rules of this standard and precautions which should be taken during the practical implementation of this standard.