Home / Standards / GB/T 17697-2014 GB/T 17697-2014 Active Acoustics―Determination of sound power radiated into a duct by fans and other air-moving devices―In-duct method 声学 风机和其它通风设备辐射入管道的声功率测定 管道法 Standard Type GBT ICS 17.140 CCS A59 Status 现行 Issue Date 2014-09-03 Implementation 2015-02-01 Responsible Dept 中国科学院 Drafting Unit N/A