IEC 61265:1995/COR1:1995
電聲學.航空噪聲測量儀器.在運輸機噪聲鑒定中測量三分之一倍頻帶聲壓級裝置的性能要求
Electroacoustics - Instruments for measurement of aircraft noise - Performance requirements for systems to measure one-third-octave band sound pressure levels in noise certification of transport-category aeroplanes