ISO 3334:2006规定了一种通过测量已处理缩微胶片中可识别细节的最小尺寸来确定分辨率的方法。它描述了测试模式和ISO分辨率测试图2，并给出了表示分辨率的方法。 ISO第2号分辨率测试图是按照其他缩微摄影国际标准的要求，设计用于作为测试目标的一部分。 ISO 3334:2006适用于测定缩微胶片系统中使用的相机、胶片和处理组合的分辨率或缩微胶片中获得的分辨率。在这种形式下，它不适用于测定缩微品阅读器的分辨率- 打印机或计算机输出缩微胶片（COM）成像系统。

ISO 3334:2006 specifies a method of determining resolution by measuring the minimum size of detail recognizable in a processed microform. It describes the test patterns and ISO resolution test chart No. 2, and gives the method of expressing resolving power. ISO resolution test chart No. 2 is designed for use as part of a test target, as required in other International Standards for micrographics. ISO 3334:2006 applies to the determination of the resolving power of a camera, film and processing combination used in a microfilming system or the resolution achieved in microforms therefrom. In this form it does not apply to the determination of the resolving power of microform readers, reader-printers or computer output microform (COM) imaging systems.