Home / Standards / GB/T 31013-2014 GB/T 31013-2014 Active Acoustics―Acoustic insulation for pipes,valves and flanges 声学 管道、阀门和法兰的隔声 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