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GB 12348-2008: PDF in English
GB 12348-2008
GB
NATIONAL STANDARD
OF THE PEOPLE’S REPUBLIC OF CHINA
ICS 13.140
Z 52
Replacing GB 12348-90, GB 12349-90
Emission standard for industrial
enterprises noise at boundary
ISSUED ON. AUGUST 19, 2008
IMPLEMENTED ON. OCTOBER 01, 2008
Issued by. Ministry of Environmental Protection;
General Administration of Quality Supervision, Inspection
and Quarantine.
Announcement
of Ministry of Environmental Protection of PRC
2008 No.44
In order to implement the Environmental Protection Law of the People's
Republic of China and the Law of the People's Republic of China on the
Prevention and Control of Environmental Noise Pollution, the prevention and
control of environmental noise pollution, the protection and improvement of
living environment, the protection of human health and the promotion of
economic and social sustainable development, hereby the Emission Standard
for Industrial Enterprises Noise at Boundary AND the Emission Standard for
Community Noise are approved as the national environment noise emission
standards, which are jointly issued by the Ministry of Environmental Protection
of PRC and the General Administration of Quality Supervision, Inspection and
Quarantine.
The standard name and number are as follows.
I. Emission Standard for Industrial Enterprises Noise at Boundary (GB
12348-2008)
II. Emission Standard for Community Noise (GB 22337-2008)
In accordance with the relevant laws, the above standards have the effect of
compulsory enforcement.
The above standards have been implemented since October 1, 2008.
The above standards are published by the China Environmental Science Press,
AND the standard content can be accessed on the website of the Ministry of
Environmental Protection (bz.mep.gov.cn).
From the date of implementation of this standard, the “Standard of noise at
boundary of industrial enterprises” (GB 12348-90) AND the “Method of
measuring noise at boundary of industrial enterprises” (GB 12349-90) are
abolished.
Hereby it is announced.
August 19, 2008
Table of contents
Foreword ... 4 
1 Scope ... 6 
2 Normative references ... 6 
3 Terms and definitions ... 6 
4 Environmental noise emission limits ... 9 
5 Measurement method ... 11 
6 Measurement results assessment ... 14 
7 Supervision of standard implementation ... 14 
Foreword
This standard is formulated for the implementation of the Environmental
Protection Law of the People's Republic of China and the Law of the People's
Republic of China on the Prevention and Control of Environmental Noise
Pollution, the prevention and control of noise pollution of industrial enterprises,
and the improvement of sound environmental quality.
This standard is the first revision of the “Standard of noise at boundary of
industrial enterprises” (GB 12348-90) and the “Method of measuring noise at
boundary of industrial enterprises” (GB 12349-90). As compared with the
original standards, the main changes of this standard are as follows.
- COMBINE the “Standard of noise at boundary of industrial enterprises”
(GB 12348-90) and the “Method of measuring noise at boundary of
industrial enterprises” (GB 12349-90) into one standard; CHANGE the
standard name into “Emission standard for industrial enterprises noise at
boundary”;
- MODIFY the scope of the application of the standard AND the background
correction value table;
- ADD the noise limit, measurement conditions, measurement point location,
measurement point layout and measurement records of category 0 region;
- ADD some terms and definitions, indoor noise limits, background noise
measurements, measurement results and measurement results
evaluation.
This standard was first published in 1990, AND this is the first revision.
This standard shall, from the date of implementation, replace the “Standard of
noise at boundary of industrial enterprises” (GB 12348-90) and the “Method of
measuring noise at boundary of industrial enterprises” (GB 12349-90).
This standard is formulated under the organization of the Ministry of
Environmental Protection Science and Technology Standards Division.
The drafting organizations of this standard. China Environmental Monitoring
Station, Tianjin Environmental Monitoring Center, Fujian Province
Environmental Monitoring Center Station.
This standard was approved by the Ministry of Environmental Protection on
July 17, 2008.
Emission standard for industrial
enterprises noise at boundary
1 Scope
This standard specifies the emission limit and measurement methods of the
environmental noise of the industrial enterprises and fixed equipment at
boundary.
This standard applies to the management, evaluation and control of noise
emission from industrial enterprises. Organs, institutions, organizations and
other units emitting noise externally may also make reference to this standard.
2 Normative references
The provisions in following documents become the provisions of this Standard
through reference in this Standard. For undated references, the latest edition
of the referenced document applies.
GB 3096 Environmental quality standard for noise
GB 3785 Electric, sonic properties and measuring methods for sound level
meters
GB/T 3241 Electroacoustics - Octave-band and fractional-octave-band
filters
GB/T 15173 Sound calibrators
GB/T 15190 Technical specification to determinate the suitable areas for
environmental noise of urban area
GB/T 17181 Integral average sound level meter
3 Terms and definitions
The following terms and definitions apply to this standard.
3.1
Industrial enterprise noise
It refers to the building which shall be kept quiet such as hospitals, schools,
institutions, scientific research units, residences and so on.
3.6
Day-time, night-time
In accordance with the “Law of People's Republic of China on
Environmental Noise Pollution Prevention and Control”, “day-time” refers to
the period between 6.00 and 22.00, AND “night-time” refers to the time
between 22.00 and 6.00.
If the people's governments at or above the county level have other different
divisions for day-time and night-time for the purposes of environmental
noise pollution prevention and control (such as taking into account the time
difference, differences in living habits, etc.), it shall follow such
requirements.
3.7
Frequent noise
It refers to the noise which is frequently occurred, has a certain principle on
the occurrence time and interval, AND is relatively short in single time
duration and high in strength, such as exhaust noise and cargo handling
noise, etc.
3.8
Sporadic noise
It refers to the noise which is occasionally occurred, has no principle on the
occurrence time and interval, AND is relatively short in single time duration
and high in strength, such as short whistle and engineering blasting noise,
etc.
3.9
Maximum sound level
It refers to the maximum value of A-weighed sound level measured for
frequent or incidental noise events within the specified measurement time,
expressed in Lmax, in dB (A).
3.10
Sound pressure level in octave bands
calibration not more than 0.5 dB; otherwise the measurement results are
invalid.
5.1.3 During measurement, the microphone shall be covered with wind shield.
5.1.4 The time weighing feature of the measurement instrument is set at the
position “K”, AND the sampling time interval shall be not more than 1 s.
5.2 Measurement conditions
5.2.1 Meteorological conditions. The measurement shall be made in the
weather free from rain, snow, or lightning, at the wind speed less than 5 m/s. If
it is necessary to make measurement under special weather conditions, it shall
take necessary measures to ensure the measurement accuracy. Meanwhile, it
shall indicate the measures taken and the meteorological conditions.
5.2.2 Measurement conditions. The measurement shall be made at the normal
working time of the measured noise source, AND meanwhile it shall indicate
the working conditions at that time.
5.3 Measurement point position
5.3.1 Measurement point layout
Based on the layout of industrial enterprise noise sources, the layout of the
surrounding noise-sensitive buildings and the adjacent regional categories,
ARRANGE several measurement points at the boundary of the industrial
enterprise, including the positions relatively close to the noise-sensitive
buildings AND the positions seriously affected by the measured sound source.
5.3.2 General provisions for measurement point positions
Under normal circumstances, the measurement points are selected at
positions 1 m beyond the enterprise enterprises, 1.2 m height above, AND not
less than 1 m away from any reflection surface.
5.3.3 Other provisions for measurement point positions
5.3.3.1 When there is fence at the boundary AND there is effected
noise-sensitive building at surroundings, the measurement points shall be
selected at the positions 1 m beyond the boundary and 0.5 m higher above the
fence.
5.3.3.2 When it is impossible to measure the actual emission conditions of the
sound source (for example, the sound source is located in upper air, and there
is acoustic barrier at the boundary, etc.) at the boundary, it shall distribute the
......

BASIC DATA
Standard ID GB 12348-2008 (GB12348-2008)
Description (Translated English) Emission standard for industrial enterprises noise at boundary
Sector / Industry National Standard
Classification of Chinese Standard Z52
Classification of International Standard 13.140
Word Count Estimation 11,168
Date of Issue 2008-08-19
Date of Implementation 2008-10-01
Older Standard (superseded by this standard) GB 12348-1990; GB/T 12349-1990
Quoted Standard GB 3096; GB 3785; GB/T 3241; GB/T 15173; GB/T 15190; GB/T 17181
Drafting Organization China Environmental Monitoring Station
Regulation (derived from) Department of Environmental Protection Notice No. 44 of 2008
Summary This Chinese standard specifies the industrial enterprises and fixed equipment plant boundary environmental noise emission limits and measurement methods. This standard applies to industrial enterprises noise emissions management, evaluation and control. Agencies, institutions, organizations and other environmental emissions of external noise units are also in accordance with the standard.