KS I ISO 389-5-2020 声学 - 参考零用于测量设备的校准 - 第5部分:频率范围内纯音的参考等效阈值声压级8 Khz至16 Khz
Acoustics — Reference zero for the calibration of audiometric equipment — Part 5: Reference equivalent threshold sound pressure levels for pure tones in the frequency range 8 kHz to 16 kHz