GB 22337-2008 English PDF

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GB 22337-2008: Emission standard for community noise
Status: Valid

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB 22337-2008	209	Add to Cart	3 days	Emission standard for community noise	Valid

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Basic data

Standard ID: GB 22337-2008 (GB22337-2008)
Description (Translated English): Emission standard for community noise
Sector / Industry: National Standard
Classification of Chinese Standard: Z67
Classification of International Standard: 13.140
Word Count Estimation: 9,928
Date of Issue: 2008-08-19
Date of Implementation: 2008-10-01
Quoted Standard: GB 3785; GB/T 3241; GB/T 15173; GB/T 17181
Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This Chinese standard specifies the business of cultural entertainment and business activities that may produce environmental noise pollution equipment, facilities boundary noise emission limits and methods of measurement. This standard applies to the business of cultural entertainment, business activities in noise emissions to the environment using the equipment, facilities management, evaluation and control.

GB 22337-2008: Emission standard for community noise

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Emission standard for community noise National Standards of People's Republic of China GB 22337 2008 Social life of environmental noise emission standards Emission standard for community noise 20,080,819 Post 20,081,001 embodiment Ministry of Environmental Protection State Administration of Quality Supervision, Inspection and Quarantine release People's Republic of China Ministry of Environmental Protection Bulletin 2008, No. 44 To implement the "People's Republic of China Environmental Protection Law" and "People's Republic of China Environmental Noise Pollution Prevention Law," preventing and controlling environmental noise Sound pollution, protecting and improving the living environment, safeguarding human health, and promoting sustainable economic and social development, it is now approved "boundary of industrial enterprises Environmental noise emission standards "and" social life of environmental noise emission standards, "the two national standards environmental noise emission standards by the Ministry And the State Administration of Quality Supervision, Inspection and Quarantine jointly issued. Standard name, numbered as follows. First, the industrial enterprises of environmental noise emission standard plant boundary (GB 12348-2008) Second, the social life of environmental noise emission standards (GB 22337-2008) According to relevant laws and regulations, these standards have the effect of enforcement. Above standard since October 1, 2008 implementation. The above criteria published by the China Environmental Science Press, standard content can be found at the website of the Ministry of Environmental Protection (bz. Mep. Gov. Cn). Since the implementation of standards from "boundary of industrial enterprises noise standards" (GB 12348-90), "boundary of industrial enterprises noise measurement methods" (GB 12349-90) abolished. Special announcement. August 19, 2008 GB 22337 2008 GB 22337 2008

Table of Contents

Preface ⅳ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 2 environmental noise emission limits 5 Measurement 3 6 Measurement results of the evaluation 4 Supervise the implementation of standards 7 4 GB 22337 2008

Foreword

To implement the "People's Republic of China Environmental Protection Law" and "People's Republic of China Environmental Noise Pollution Prevention Law," Health and Social Prevention Live noise pollution and improve the sound quality of the environment, the development of this standard. This standard is based on the existing laws of social life noise pollution discharge of obligations under, for business and commercial culture and entertainment Business activities may produce environmental noise pollution equipment and facilities that define the boundaries of noise emission limits and measurement methods. This standard is the first release. This standard is developed by the Ministry of Environmental Protection Science, Technology organization. This standard was drafted. Beijing Labor Protection Science Research Institute, the Beijing Municipal Environmental Protection Bureau, Guangzhou Municipal Environmental Monitoring Center. This standard MEP July 17, 2008 for approval. This standard since October 1, 2008 implementation. The standard explanation by the Ministry of Environmental Protection. GB 22337 2008 Social life of environmental noise emission standards

1 Scope

This standard specifies the business culture and entertainment and business activities that may produce environmental noise pollution equipment and facilities border Noise emission limits and measurement methods. This standard applies to commercial cultural entertainment, noise emissions to the environment of equipment for use in business activities, facilities Management, evaluation and control.

2 Normative references

This standard refers to the contents of the following documents or the terms. For undated references, the effective version applies to this standard. GB electric, acoustic performance and test methods 3785 Sound Level Meter GB/T 3241 octave and fractional octave filters GB/T 15173 acoustic calibrator GB/T 17181 points average sound level meter

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 Social life noise community noise Noise refers to the business culture and entertainment and business activities in the use of equipment and facilities produced. 3.2 Noise-sensitive buildings noise-sensitive buildings Refers to hospitals, schools, institutions, research institutes, such as the need to keep quiet residential building. 3.3 A sound level A-weighted sound pressure level With A-weighted sound pressure level measured network with LA, the unit dB (A). 3.4 Equivalent continuous A sound level equivalent continuous A-weighted sound pressure level Referred to as the equivalent sound level, refer to the average energy within a predetermined time T A sound level measurement, with the LAeq, T represents (abbreviated as Leq), the unit dB (A). Unless otherwise specified, this standard noise limits are all equivalent sound level. By definition, the equivalent sound level is expressed as. L eq = 10 lg T∫ 100.1 · LAd () t Where. LA --- t time the instantaneous sound level A; The T --- predetermined measurement period. 3.5 Border boundary By the legal instruments (such as land use permits, real estate license, lease contracts, etc.) determined the owners have the right to use (or ownership) Place or building boundary. Noise generated by various fixtures, border facilities for its actual area boundary. GB 22337 2008 3.6 Background noise background noise Environmental noise is emitted from a sound source other than the sum of the measurement noise source. 3.7 Octave band sound pressure level sound pressure level in octave bands Used in line with band SPL octave filters measured GB/T 3241 regulations, the measurement bandwidth and center frequency proportional. Interior noise octave band center frequency spectrum analysis used in this standard is 31.5 Hz, 63 Hz, 125 Hz, 250 Hz, 500 Hz, which covers Frequency range of 22 ~ 707 Hz. 3.8 Diurnal day-time, night, night-time According to "People's Republic of China Environmental Noise Pollution Prevention Law," "daytime" refers to the 6. 00 hours between; "Night". 00-22 22 means. the period between 00. 00 to 6.00 the next day. Above the county level for the needs of environmental noise pollution prevention and control (such as considering the time difference, habits differences) and for daytime, night Divided between otherwise specified, it shall be its provisions.

4 environmental noise emission limits

4.1 Boundary noise emission limits 4.1. 1 social life noise sources shall not exceed the boundaries of noise emission limits specified in Table 1. Table 1 social life noise sources boundary noise emission limits Unit. dB (A) Outer boundary acoustic environment functional area category time Daytime Nighttime 4.1. 2 can not be the result of noise measurement or measured noise emission sources in the social life at the boundary does not accurately reflect its noise-sensitive construction Under the influence of the extent of the buildings, the noise measurement shall be carried out in the potentially affected sensitive buildings out the window at 1 m. 4.1. 3 when the social life noise sources and noise-sensitive buildings boundary distance is less than 1 m, shall indoor noise-sensitive structures Measurement and corresponding limits in Table 1 minus 10 dB (A) as a basis for evaluation. 4.2 structure-borne noise emission limits for indoor fixtures 4.2. 1 in social life noise sources located in the inner noise-sensitive buildings, the noise transmission to the building structure by noise-sensitive When building an indoor, indoor noise-sensitive buildings shall not exceed the equivalent sound level in Table 2 and Table 3 limits specified. Table 2 structure-borne noise emission limits for indoor fixed equipment (equivalent sound level) Unit. dB (A) Category in which the ribbon Noise-sensitive buildings acoustic environment periods Rooms Room Type A Class B Class Room Day Night Day Night 2,3,4 45,355,040 Description. A class room --- refers to the primary purpose of sleep, the need to ensure a quiet room at night, including residential bedrooms, hospital wards, hotel rooms and the like. Class B refers to the room --- mainly in the daytime, we need to ensure that thinking and mental concentration, normal speech is not disturbed in the room, including classrooms, Meeting rooms, offices, residential rooms, etc. other than the bedroom. GB 22337 2008 Table 3 structure-borne noise emission limits for indoor fixtures (octave band sound pressure level) Unit. dB Noise-sensitive buildings Live sound environment Ribbon category Time Room type Octave band center frequency/Hz Interior noise octave band sound pressure level limit 31.5 63 125 250 500 Daytime A, Class B room 7659483934 Night A, Class B room 6951393024 A daytime class room 7659483934 Class B Rooms 7963524438 A class room at night 6951393024 Class B Rooms 7255433529 2,3,4 A daytime class room 7963524438 Class B Rooms 8267564943 A class room at night 7255433529 Class B Rooms 7659483934 4.2. 2 For non-stationary noise (eg noise elevators etc.) occur during the noise measurements, the maximum sound level does not exceed the limits of the amplitude Higher than 10 dB (A).

5 measurement method

5.1 Measuring Instruments 5.1. 1 measuring instrument with integrated average sound level or ambient noise automatic monitoring instrument, its performance should not be less than GB 3785 and GB/T 17181 Type 2 instruments. Measured 35 dB below the noise should use Type 1 sound level meter, and the measurement range of the measurement noise should meet the needs want. Calibration instruments should be consistent with GB/T 15173 the Tier 1 or Class 2 acoustic calibrator requirements. When you need the noise spectrum analysis, Instrument performance should be consistent with GB/T 3241 in the filter requirements. 5.1 2 measurement instruments and calibration of the instrument should be regularly certified by, and in the effective use of life; before each measurement, the test must be after The amount of live acoustic calibration, its front and rear calibration indication deviation of not greater than 0.5 dB, otherwise the measurement will be invalid. 5.1. 3 measuring microphone windscreen. 5.1. 4 measuring instruments Time weighting characteristic is set to "F" file, the sampling intervals of not more than 1 s. 5.2 Measurement conditions 5.2 1 weather conditions. measurements should be carried out in the absence of rain and snow, no lightning weather, wind speed 5 m/s or less. We had special weather strip When measured member shall take the necessary measures to ensure the accuracy of measurement, together with an indication of the measures taken at the time and weather conditions. 5.2 2 Measurement conditions. measurement of the sound source under test shall be carried out during normal working hours, and working conditions at the time indicated. 5.3 measuring point 5.3. 1 measuring point layout According to the social life noise sources, as well as the layout of the area adjacent to the category of ambient noise sensitive buildings in the social life noise Sources boundary laid multiple measuring points, including from noise-sensitive buildings closer to the sound source under test as well as a large influence by location. 5.3. The measuring point 2 General Provisions Under normal circumstances, measuring tap in social life noise sources outside the boundaries 1 m, height of 1.2 m or more, from any distance is not a reflection surface Less than 1 m position. 5.3. 3-point position of the other provisions 5.3. 3.1 When the boundary walled and have affected noise-sensitive structures around the measuring point should be selected in the outer boundary of 1 m, higher than the wall 0.5 m above location. GB 22337 2008 5.3. 3.2 When the boundary condition can not measure the actual emissions of the sound source (such as a sound source is located at high altitude, the boundary has a sound barrier, etc.) shall be 5.3.2 Setting measuring points, while the noise-sensitive buildings affected by outdoor 1 m at a separate measuring point. 5.3. 3.3 indoor noise measurements, indoor measurement point is located away from any reflective surface at least 0.5 m above, 1.2 m height from the ground, In the window affected by noise measurements under the direction of the open state. Fixed sound transmission device structure 5.3. 3.4 social life noise sources to indoor noise-sensitive structures in the interior noise sensitive buildings Measurement, the measuring point should be away from any reflective surface at least 0.5 m above from the ground 1.2 m, 1 m or more away from outside windows, windows closed under a state measure the amount. Other possible interference measurements of the sound source under test room (such as televisions, air conditioners, exhaust fans and a loud fluorescent ballasts, When running out loud clock, etc.) should be closed. 5.4 measurement period 5.4. 1 respectively at daytime and night two measurement periods. There are frequent at night while measuring the maximum sound level when the occasional noise. 5.4. The second test sound source is stationary noise, the use of equivalent sound level 1 min. 5.4. 3 non-stationary noise source under test, measuring the equivalent sound source under test a representative period, if necessary, the sound source is measured on the whole Equivalent sound level of normal working hours. 5.5 Background noise measurement 5.5 1 Measurement environment. not measured the impact and other sound source is consistent with the measurement of the ambient sound source under test. 5.5 2 measurement period. The length of time and the sound source under test measured the same. 5.6 Measuring records To be done to measure the noise measurement records. Record shall include. the measured unit name, address, boundary acoustic environment in which the work Category energy region, weather conditions during the measurement, measuring instruments, instrument calibration, measuring point, measuring time, measurement period, instrument calibration value (Pre-test, post-test), the main sound source, the measurement conditions, schematic (boundary, the sound source, noise-sensitive buildings, measuring point position, etc.), noise Measurements, background values, surveyors, Reviewer, Reviewer and other related information. 5.7 measurement result correction 5.7. 1 noise measurement value of the background noise is greater than the difference between the value of 10 dB (A), noise measurement value not corrected. 5.7. 2 measured values of noise and the background noise in the difference value is between 3 ~ 10 dB (A), measured values of noise and background noise difference value rounded After correction in Table 4. Table 4 Measurement results correction Unit. dB (A) The difference between the 34 ~ 56 ~ 10 Correction value --3--2--1 After 5.7 3 noise measurement value of the background noise level by less than 3 dB (A), should take measures to reduce background noise, as the case according to 5.7.1 5.7.2 or execution; still unable to meet the first two requirements, according to relevant provisions of environmental noise monitoring the implementation of the technical specifications.

6 Measurement results of the evaluation

6.1 measurement results of each measuring point should be evaluated separately. The same measuring point measurements per day by daytime and nighttime evaluated. 6.2 The maximum sound level Lmax direct evaluation. Monitor the implementation of standards 7 This standard by the people's governments above the county level environmental protection administrative department responsible for overseeing implementation. GB 22337 2008 ......

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