指定物理特性和磁性特性。还规定了记录信号的质量、记录格式和记录方法，从而允许通过这种盒式磁带在驱动器之间进行数据交换。指定两种类型的磁带盒，称为A型（标称厚度为13μm、标称长度不超过60.5m的磁带）和B型（标称厚为9μm、公称长度不超过92.0m的磁带）。

Specifies the physical and magnetic characteristics. Also specifies the quality of the recorded signals, the recorded format and the recording method, thereby allowing data interchange between drives by means of such magnetic tape cartridges. Specifies two types of cartridges referred to as type A (magnetic tape of nominal thickness of 13 μm and a nominal length of up to 60,5 m) and type B (magnetic tape of a nominal thickness of 9 μm and a nominal length of up to 92,0 m).