GB/T 34877.4-2024
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 34877.4-2024
Industrial fans-Determination of sound power level of fans under standard laboratory conditions-Part 4: Sound intensity method 工业风机-标准实验室条件下风机声功率级的测定-第4部分:声强法
Issued Date:2024.5.28
Implemented Date:2024.12.1
Issued by:
The Standardization Administration of the People's Republic of China