Home / Standards / GB/T 25077-2010 GB/T 25077-2010 Active Acoustics - Materials for acoustical applications - Determination of airflow resistance 声学 多孔吸声材料流阻测量 Standard Type GBT ICS 17.140 CCS A59 Status 现行 Issue Date 2010-09-02 Implementation 2011-04-01 Responsible Dept 中国科学院 Drafting Unit N/A