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Chinese Standard: GB/T 4854.8-2007

Acoustics—Reference zero for the calibration of audiometric equipment—Part 8:Reference equivalent threshold sound pressure levels for pure tone and circumaural earphones

IDT  ISO 389-8:2004

全国声学标准化技术委员会(SAC/TC 17)

本部分规定了125 Hz~8 000 Hz频率范围的纯音基准等效阈声压级(RETSPLs),适用于配备了一种特殊型号的耳罩式耳机(SENNHEISER HDA 200)的气导测听设备的校准。
注: 在附录A和参考文献中给出了得出HDA 200型耳罩式耳机基准等效阈声压级的说明和测试条件。
附录B给出了这种耳罩式耳机的声衰减。附录C给出了AE类和BE类语言听力计(见GB/T 7341.2)耳机的自由场等效输出修正值。

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