包括磁带和录音机/复制机的特性和记录模式，以使不同系统的用户能够交换记录在仪器磁带上的信息。附件A、B、C、D和E分别包含测试录音机/复制机系统的推荐程序、磁带录音机/复制机信息和使用标准、磁带录音机/复制机测试的附加NAT、PCM标准-附加信息和建议，以及频分复用的使用标准。

Includes the tape and recorder/reproducer characteristics and modes of recording to enable users of different systems to interchange information recorded on instrumentation magnetic tape. Annexes A, B, C, D, and E contain recommended procedure for testing recorder/reproducer systems, magnetic tape recorder/reproducer information and use criteria, additional nates for the testing of magnetic tape recorder/reproducer, PCM standards - additional information and recommendations -, and use criteria for frequency division multiplexing, respectively.