Home / Standards / GB/T 13581-1992 GB/T 13581-1992 Abolished Minimum performance requirements on high fidelity head phones 高保真头戴耳机最低性能要求 Standard Type GBT ICS 33.160.50 CCS M72 Status 废止 Issue Date 1992-07-15 Implementation 1993-05-01 Responsible Dept 工业和信息化部（电子） Drafting Unit N/A