Home / Standards / GB/T 18699.1-2002 GB/T 18699.1-2002 Active Acoustics--Determination of sound insulation performances of enclosures--Part 1:Measurements under laboratory conditions (for declaration purposes) 声学 隔声罩的隔声性能测定 第1部分:实验室条件下测量(标示用) Standard Type GBT ICS 17.140.01 CCS Z32 Status 现行 Issue Date 2002-03-26 Implementation 2002-12-01 Responsible Dept 中国科学院 Drafting Unit 中国科学院