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GB/T 25498.3-2010  China national standard english version:

　
GB
中华人民共和国国家标准
NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

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
Issued Date:2010-12-01 　 Implemented Date:2011-05-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 25498.3-2010
Standard Category China National Standards
GB Standard English Title Electroacoustics - Simulators of human head and ear - Part 3: Acoustic coupler for the calibration of supra-aural earphones used in audiometry
GB Standard Chinese Title 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
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