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'earphones'
China GB Standards List

 GB/T 25498.5-2017  
Electroacoustics—Simulators of human head and ear—Part 5：2 cm3 coupler for the measurement of hearing aids and earphones coupled to the ear by means of ear inserts
电声学 人头模拟器和耳模拟器 第5部分：测量助听器和以插入方式与人耳耦合的耳机用2cm3声耦合器
 GB/T 15528-2013  
Methods of measurement on microphones and earphones for speech communications
语音通信用传声器和耳机测量方法
 GB/T 12060.7-2013  
Sound system equipment—Part 7：Methods of measurement on headphones and earphones
声系统设备 第7部分：头戴耳机和耳机测量方法
 GB/T 25498.3-2010  
Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
电声学 人头模拟器和耳模拟器 第3部分：校准压耳式测听耳机用声耦合器
 GB/T 25498.1-2010  
Electroacoustics - Simulators of human head and ear - Part 1: Ear simulator for the calibration of supra-aural earphones
电声学 人头模拟器和耳模拟器 第1部分：校准压耳式耳机用耳模拟器
 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
 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
 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
 GB/T 6661-1986  
Nipples for insert earphones
插入式耳机的乳头状接头

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