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GB/T 21229-2007  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 21229-2007

Acoustics - Determination of sound power levels of noise from air-terminal devices,air-terminal units,dampers and valves by measurement in a reverberation room
声学 风道末端装置、末端单元、风道闸门和阀噪声声功率级的混响室测定
Issued Date:2007-11-14 　 Implemented Date:2008-05-01
Issued by: 　 The Standardization Administration of the People's Republic of China
　

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GB Standard Code GB/T 21229-2007
Standard Category China National Standards
GB Standard English Title Acoustics - Determination of sound power levels of noise from air-terminal devices,air-terminal units,dampers and valves by measurement in a reverberation room
GB Standard Chinese Title 声学 风道末端装置、末端单元、风道闸门和阀噪声声功率级的混响室测定
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English Translation Fee $15.00~$30.00   per 1 page
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