GB/T 4854.5-2008

Acoustics - Reference zero for the calibration of audiometric equipment- Part 5: Reference equivalent threshold sound pressure levels for pure tone in the frequency range 8 kHz to 16 kHz

声学 校准测听设备的基准零级 第5部分：8kHz-16kHz频率范围纯音基准等效阈声压级