标准摘要
[中文适用范围]： 指定盒式磁带的机械、物理和磁性特性，以便提供数据处理系统之间的物理互换性。 它还指定了记录方法、记录信号的质量、轨道布局和轨道格式。 这种软盘盒被标识为 ISO 类型 305。 与卷和文件结构标准（例如 ISO/IEC 9293）一起，它允许数据处理系统之间的完整数据交换。 [外文原描述]： Specifies the mechanical, physical and magnetical characteristics of the cartridge, so as to provide physical interchangeability between data processing systems. It also specifies the method of recording, the quality of recorded signals, the track layouts and the track formats. Such flexible disk cartridges are identified as ISO type 305. Together with a standard for volume and file structure, for instance ISO/IEC 9293, it allows full data interchange between data processing systems.
英文名称Information technology - 90 mm flexible disk cartridges - 21 MBytes formatted capacity - ISO Type 305