MH/T 9003-2008
電聲學.航空噪聲測量儀器在運輸類飛機噪聲合格審定中測量1/3寬帶倍頻聲壓級裝置的性能要求
Electroacoustics.Instruments for measurement of aircraft nois.Performance requirements for systems to measure one-third-octave band sound pressure levels in noise certincation of transport-category aeroplanes
MHT9003-2008, MH9003-2008