Home / Standards / GB/T 20248-2006 GB/T 20248-2006 Active Acoustics - Measurement of sound pressure levels in the interior of aircraft during flight 声学 飞行中飞机舱内声压级的测量 Standard Type GBT ICS 17.140 CCS A59 Status 现行 Issue Date 2006-05-08 Implementation 2006-11-01 Responsible Dept 中国科学院 Drafting Unit 中国科学院