标准摘要
[中文适用范围]： 本文件规定了第二代银明胶和重氮缩微制品的视觉漫透射密度以及第二代囊泡缩微制品的投影密度。 它还规定了测量方法。 它不适用于技术图纸和其他绘图办公室文件的缩微副本。 [外文原描述]： This document specifies visual diffuse transmission densities for second generation silver-gelatin and diazo microforms and projection densities for second generation vesicular microforms. It also specifies methods of measurement. It does not apply to duplicates of microforms of technical drawings and other drawing office documents.
英文名称Micrographics — Duplicating film, silver, diazo and vesicular — Specifications and measurement for visual density