ISO 3272-1:2003规定了缩小比、放大比、放大尺寸和产生的图像尺寸，用于记录在35 mm未穿孔缩微胶片技术图纸和其他图纸办公室文件上，如建筑师的平面图、计算书、规范、词汇表和零件清单。 ISO 3272-1:2003适用于不大于A0的文件的缩微胶卷，其背景为浅色，带有暗线和字符，最好按照ISO 5457和ISO 6428制备。它也可适用于ISO 5457中规定的尺寸以外的尺寸，前提是尺寸不大于912 mm x 1 230 mm，并且可以容纳在ISO 3272中规定的35 mm缩微胶片的单个框架内- 1:2003. ISO 3272-1:2003不适用于COM设备创建的图像。

ISO 3272-1:2003 specifies reduction ratios, enlargement ratios, sizes of enlargement and the resulting image sizes for recording on 35 mm unperforated microfilm technical drawings and other drawing office documents, such as architects' plans, calculation notes, specifications, vocabularies and parts lists. ISO 3272-1:2003 applies to the microfilming of documents no larger than A0 with dark lines and characters on a light background, preferably prepared in accordance with ISO 5457 and ISO 6428. It may also apply to sizes other than those specified in ISO 5457, provided they are no larger than 912 mm x 1 230 mm and can be accommodated within a single frame of 35 mm microfilm, as specified in ISO 3272-1:2003. ISO 3272-1:2003 does not apply to images created by a COM device.