This standard applies to the boundaries of factories and enterprises and institutions that may cause noise pollution. GB 12348-1990 Industrial Enterprise Boundary Noise Standard GB12348-1990 Standard download and decompression password: www.bzxz.net

National Standards of the People's Republic of China
Standard of noise at boundary of industrial enterprises
Standard of noise at boundary of industrial enterprises
-90
GB12348
This standard is for the implementation The Environmental Protection Law of the People's Republic of China and the Regulations of the People's Republic of China on the Prevention and Control of Environmental Noise Pollution are formulated to control the wide-area noise hazards of industrial enterprises.
1 Scope of application of the standard
This standard applies to the boundaries of factories and enterprises and institutions that may cause noise pollution. 1.1
Standard value
The standard values ??of various types of factory boundary noise are listed in the following table: Equivalent sound level I [dB(A))
Class
H|| tt||IV
Specification
1.2 Delimitation of applicable scope of various standards
Daytime
55
60
65|| tt||70
1.2.11 standards are applicable to areas dominated by residences and cultural and educational institutions.
1.2.2 Class II standards are applicable to residential, commercial, industrial mixed areas and commercial central areas. 1.2.3 Category II standards apply to industrial areas.
1.2.4 Class IV standards apply to areas on both sides of traffic trunk roads. 1.2.5 The applicable scope of various standards is determined by the local people's government. Night
45
50
55
55
|1.3 Frequent sudden noises at night (such as exhaust noise). The peak value shall not exceed the standard value of 10dB(A). The peak value of occasional sudden noise at night (such as a short whistle) shall not exceed the standard value of 1.5dB(A). 1.4 The daytime and nighttime hours of this standard are determined by the local people's government according to local customs and seasonal changes. 2 Referenced standards
Measurement method of noise at industrial enterprise boundaries
GB12349bZxz.net
3 Monitoring method
shall be implemented in accordance with GB12349.
National Environmental Protection Administration approved on 1990-05-01 for implementation on 1991-01-01
Additional notes:
This standard was proposed by the National Environmental Protection Administration. The National Environmental Protection Administration is responsible for interpreting this standard. GB12348-90
The main drafters of this standard are Guo Jingnan, Zhu Yuguang, Guo Xiulan, Chen Guanghua and Zhu Jianping.
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