ISO/IEC TS 22424系列通过双重策略支持EPUB出版物的长期保存。本文件从长期保存的角度考虑EPUB功能。有些EPUB功能是禁止的，有些是必需的，这取决于它们与长期保存的关系。根据这些指南制作的EPUB出版物适合保存。 ISO/IEC TS 22424-2使EPUB符合开放式档案信息系统（OAIS）和OAIS档案的现行做法。

The ISO/IEC TS 22424 series supports long-term preservation of EPUB publications via a dual strategy. This document considers EPUB features from a long-term preservation point of view. Some EPUB features are forbidden and some others required, depending on how they relate to a long-term preservation. EPUB publications constructed according to these guidelines are suitable for preservation. ISO/IEC TS 22424-2 makes EPUB compliant with Open Archival Information System (OAIS) and current practices of OAIS archives.