Acoustics—Reference standards english version

NATIONAL STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA

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

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The Standardization Administration of the People's Republic of China

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GB Standard Code	GB/T 4854.9-2016
Standard Category	China National Standards
GB Standard English Title	Acoustics—Reference zero for the calibration of audiometric equipment—Part 9: Preferred test conditions for the determination of reference hearing threshold levels
GB Standard Chinese Title	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
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