提供了用于信息处理系统、通信系统和相关设备之间信息交换的小型盒式磁带的要求，这些设备使用了交换双方约定的标准代码。本标准仅涉及磁带记录的要求。遵守X3。249是信息交换的要求。未记录标准提供了一般要求、定义、物理和磁带特性以及盒式磁带要求。

Provides the requirements for a tape mini cartridge to be used for information interchange among information processing systems, communications systems, and associated equipment utilizing a standard code as agreed upon by the interchange parties. This standard deals solely with the requirements for recording on magnetic tape. Compliance with X3.249 is a requirement for information interchange. The unrecorded standard provides the general requirements, definitions, physical and magnetic tape characteristics and the tape-cartridge requirements.