EN 61265-1995 电声学.航空噪声测量仪器.在运输机噪声鉴定中测量三分之一带宽倍频声压级装置的性能要求(IEC 1265-1995)
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