本标准规定了12.65 mm仪器磁带盒的信息格式。信息技术 指定螺旋线数据和控制轨迹的尺寸和位置。它定义了格式和记录 构成包含数字仪器和其他相关仪器的螺旋数据轨道的数据块的要求 数据，并指定控制磁道的内容、格式和记录方法。物理要求， 本标准未规定磁带和盒式磁带的磁性要求和试验方法， 但可以在参考文献或技术文献中找到。不提供专利或版权功能的许可证 执行本标准所需。给出的所有尺寸均为公制。

This standard establishes the format of information on 12.65 mm instrumentation magnetic tape cassettes. It specifies the dimensions and locations of helical data and control tracks. It defines the format and recording requirements of the data blocks forming the helical data track containing digital instrumentation and other associated data, and specifies the content, format, and recording method for the control track. The physical requirements, magnetic requirements, and test methods for the magnetic tape and tape cassette are not specified in this standard, but can be found in the references or in the technical literature. No licenses for patented or copyrighted features are required to implement compliance with this standard. All dimensions given are metric.