中華人民共和國國家標準
NATIONAL
STANDARD OF THE PEOPLE'S REPUBLIC OF CHINA
GB/T 20246-2006
Acoustics - Determination of sound power levels of multisource industrial plants for evaluation of sound pressure levels in the environment - Engineering method 聲學 用于評價環境聲壓級的多聲源工廠的聲功率級測定 工程法
Issued Date:2006-05-08
Implemented Date:2006-11-01
Issued by:
The Standardization Administration of the People's Republic of China