GB/T 21229-2007 standards english version

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

Issued Date:

Implemented Date:

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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