Home / Standards / GB/T 3223-1994 GB/T 3223-1994 Abolished Acoustics--Free-field calibration method of under-water sound transducers 声学 水声换能器自由场校准方法 Standard Type GBT ICS N/A CCS A59 Status Abolished Issue Date 1994-12-27 Implementation 1995-08-01 Centralized Committee 中国科学院 Issuing Authority 国家技术监督局