提供有关创建原始文档的指导，以便于将其复制为缩微品。适用于背景清晰、由连续行组成的黑色文档。不适用于ISO 5457和ISO 6428中给出要求的技术图纸。

Provides guidance on the creation of original documents to facilitate their reproduction as microforms. Applies to documents in black on a clear background, made up of continuous lines. Does not apply to technical drawings for which requirements are given in ISO 5457 and ISO 6428.