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GB/T 4854.3-2022 Acoustics—Reference zero for the calibration of audiometric equipment—Part 3：Reference equivalent threshold vibratory force levels for pure tones and bone vibrators 声学 校准测听设备的基准零级 第3部分: 骨振器纯音基准等效阈振动力级 - 英文版 |
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GB/T 4854.9-2016 Acoustics—Reference zero for the calibration of audiometric equipment—Part 9: Preferred test conditions for the determination of reference hearing threshold levels 声学 校准测听设备的基准零级 第9部分：确定基准听阈级的优选测试条件 - 英文版 |
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GB/T 4854.6-2014 Acoustics―Reference zero for the calibration of audiometric equipment―Part 6: Reference hearing threshold levels for test signals of short duration 声学 校准测听设备的基准零级 第6部分：短时程测试信号的基准听阈 - 英文版 |
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GB/T 4854.7-2008 Acoustics - Reference zero for the calibration of audiometric equipment - Part 7: Reference threshold of hearing under free-field and diffuse-field listening conditions 声学 校准测听设备的基准零级 第7部分: 自由场与扩散场测听的基准听阈 - 英文版 |
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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 - 英文版 |
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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 声学 校准测听设备的基准零级 第8部分：耳罩式耳机纯音基准等效阈声压级 - 英文版 |
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GB/T 4854.1-2004 Acoustics--Reference zero for the calibration of audiometric equipment--Part1:Reference equivalent threshold sound pressure levels for pure tones and supra-aural earphones 声学 校准测听设备的基准零级 第1部分:压耳式耳机纯音基准等效阈声压级 - 英文版 |
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GB/T 4129-2003 Acoustics--Requirements for the performance and calibration of reference sound sources used for the determination of sound power levels 声学 用于声功率级测定的标准声源的性能与校准要求 - 英文版 |
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GB/T 4854.4-1999 Acoustics--Reference zero for the calibration of audiometric equipment--Part 4:Reference levels for narrow-band masking noise 声学 校准测听设备的基准零级 第4部分:窄带掩蔽噪声的基准级 - 英文版 |
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GB/T 4854.3-1998 Acoustics--Reference zero for the calibration of audiometric equipment--Part 3:Reference equivalent threshold force levels for pure tones and bone vibrators 声学 校准测听设备的基准零级 第3部分:骨振器纯音基准等效阈力级 - 英文版 |
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GB/T 16402-1996 Acoustics--Reference equivalent threshold sound pressure levels for pure tones and insert earphones 声学 插入式耳机纯音基准等效阈声压级 - 英文版 |
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