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Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email. HJ 640-2012: Technical specifications for environmental noise monitoring. Routine monitoring for urban environmental noise Status: Valid
Basic dataStandard ID: HJ 640-2012 (HJ640-2012)Description (Translated English): Technical specifications for environmental noise monitoring. Routine monitoring for urban environmental noise Sector / Industry: Environmental Protection Industry Standard Classification of Chinese Standard: Z32 Classification of International Standard: 13.140 Word Count Estimation: 17,167 Quoted Standard: GB 3096; GB/T 15190; GA 802 Regulation (derived from): Department of Environmental Protection Notice No. 69 of 2012 Issuing agency(ies): Ministry of Ecology and Environment Summary: This standard specifies the routine monitoring of urban acoustic environment monitoring contents, set points, monitoring frequency, measurement time, evaluation methods and quality assurance and quality control and other technical requirements. This stand HJ 640-2012: Technical specifications for environmental noise monitoring. Routine monitoring for urban environmental noise---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order. Technical specifications for environmental noise monitoring.Routine monitoring for urban environmental noise People's Republic of China National Environmental Protection Standards Environmental noise monitoring technical specifications Routine monitoring of urban acoustic environment Technical specifications for environmental noise monitoring Routine monitoring for urban environmental noise (Release) Issued on.2012-12-03 2013-03-01 implementation release Ministry of Environmental Protection Table of ContentsPreface .II 1. Scope ..1 2 Normative references 1 3 Terms and definitions ..1 4 regional acoustic environment monitoring 2 5 road traffic acoustic environment monitoring .. 3 6 Sound Environment Monitoring 5 7 monitoring sites adjusted .7 8 urban acoustic environment monitoring report ..7 9 Quality Assurance and Quality Control ..7 Appendix A (informative) sound urban environmental monitoring sites were the basic information table, and record the results in Table 9 StatisticsForewordTo implement the "People's Republic of China Environmental Protection Law" and "People's Republic of China Environmental Noise Pollution Prevention Law" to regulate the city Acoustic Environment routine monitoring and evaluation, development of this standard. This standard specifies the content of urban acoustic environment monitoring routine monitoring, set point, monitoring frequency, time measurement, evaluation method And quality assurance and quality control and other technical requirements. Appendix A of this standard is an informative annex. This standard is developed by the Ministry of Environmental Protection Science, Technology organization. This standard drafting units. China National Environmental Monitoring Center, Wuhan Environmental Monitoring Center, Ministry of Environmental Protection Environmental Standards Institute. This standard MEP December 3, 2012 for approval. This standard since March 1, 2013 implementation. The standard explanation by the Ministry of Environmental Protection. Environmental noise monitoring technical specifications urban sound environment for routine monitoring1 ScopeThis standard specifies the content of urban acoustic environment monitoring routine monitoring, set point, monitoring frequency, time measurement, evaluation method And quality assurance and quality control and other technical requirements. This standard applies to the environmental protection department of the monitoring and evaluation of environmental quality in the city carried out routine monitoring of urban acoustic environment Measurement. Rural areas acoustic environment monitoring can be implemented by reference.2 Normative referencesThis standard refers to the contents of the following documents or the terms. Where undated references, the valid version apply to this standard. GB 3096 acoustic environment quality standards GB/T 15190 Urban Noise applicable zoning specifications GA 802 vehicle type terms and definitions3 Terms and DefinitionsThe following terms and definitions apply to this standard. 3.1 Urban Environmental Noise routine monitoring Also known as the routine monitoring refers to monitoring the regional acoustic environment for mastering environmental quality in the city, the environmental protection department carried out, Road traffic acoustic environment monitoring and Sound Environment Monitoring (abbreviated. regional monitoring, traffic monitoring and monitoring of functional areas). 3.2 Urban Roads Roads within the city limits with certain technical conditions and facilities, mainly for urban expressways, urban trunk road, urban sub-distributors, Including rail corridor through the city roads and highways. 3.3 city size Usually it refers to the number of the city's population, according to the urban resident population, a huge city of more than 10 million people, 3 million mega-cities ~ 10 million people (inclusive), cities 100 to 300 million people (inclusive), medium-sized city of 500,000 people to 100 million (inclusive), Small city of less than or equal to 50 million people. 3.4 Large car According to GA 802, grew up in a car than or equal to 6 m is equal to or greater than the number of passengers 20 passenger cars, and a large total mass Than or equal to 12 t of truck and trailer. 3.5 SMEs car According to GA 802, refers to the vehicle length less than 6 m and the number of passengers less than 20 passenger cars, with a total mass of less than 12 t laden steam Trucks and trailers, and motorcycles. 3.6 Ribbon According to GB/T 15190 of the divided city of various types of environmental noise applicable zone.4 regional acoustic environmental monitoring4.1 Regional monitoring purposes Evaluation of the overall level of noise throughout the urban environment; analysis of urban acoustic environment variation and annual trends. Point 4.2 of the regional monitoring settings 4.2.1 Referring to GB 3096 Appendix B Sound Environment Monitoring district census, the city built the entire area into a plurality of other major Square grid (eg 1000m × 1000m), not even for a piece of the built-up area, a square grid can not converge. Water grid Surface area or areas can not be monitored (eg. closed area) and an area of 100% non-built-up area is more than 50% of the grid meshes invalid. Total number of valid grid throughout the urban area should be more than 100. 4.2.2 In the center of each laid a grid monitoring sites. If the center of the grid should not be measured (such as water, restricted area, the road line Lanes, etc.) should be monitored from the center point to move to the location of the nearest measure to measure. Measuring point to meet the GB 3096 The test point selection general outdoor requirements. Monitoring points height from the ground is 1.2 ~ 4.0 m. 4.2.3 monitoring sites based content information can be found in Schedule 1 of the regulations. Frequency, time, and measuring the amount of 4.3 of the regional monitoring 4.3.1 Daytime monitoring once a year, monitoring should be within the normal daytime working hours, and should cover the entire working hours. 4.3.2 Monitoring at night once every five years, in the third year of each five-year plan for monitoring, surveillance begins the night start time. 4.3.3 Monitoring should be arranged during the annual spring or autumn, each city should be relatively fixed monitoring date, monitoring should avoid holidays And non-normal working day. 4.3.4 Each monitoring sites measuring 10 min of the equivalent continuous A sound level Leq (abbreviation. equivalent sound level), recording cumulative percentile sound level L10, L50, L90, Lmax, Lmin and the standard deviation (SD). Results of regional monitoring and evaluation 4.4 4.4.1 Monitoring data should be specified in Schedule 4 of the contents of the recording. Monitoring statistics provided by the contents of Schedule 7 reported. 4.4.2 calculate the overall level of noise throughout the urban environment. The entire city all grid points measured equivalent sound level measured points for day and night, According to equation (1) arithmetic mean calculation, the average daytime and nighttime equivalent sound dS average equivalent nS obtained on behalf of the city The overall level of environmental noise day and night. iLn (1) Where. S - urban areas average daytime equivalent sound level (dS) or night average equivalent (nS), dB (A); Li - the i-th grid measured equivalent sound level, dB (A); n - total number of valid grid. 4.4.3 The overall level of environmental noise of urban area in Table 1 were evaluated. Table 1 Urban Noise level overall classification Unit. dB (A) Level one two three four five Average daytime equivalent sound level (dS) ≤50.0 50.1 ~ 55.0 55.1 ~ 60.0 60.1 ~ 65.0 > 65.0 Night average equivalent (nS) ≤40.0 40.1 ~ 45.0 45.1 ~ 50.0 50.1 ~ 55.0 > 55.0 The overall level of urban regional environmental noise level "a" to "five" may correspond evaluated as "good", "better", "General", "poor" and "poor."5 road traffic acoustic environment monitoring5.1 road traffic monitoring purposes Reflect road traffic noise source intensity noise; analysis of road traffic noise level and traffic, road conditions and the relationship between changes in regulations Annual variation and trends analysis of urban road traffic noise; law. 5.2 point road traffic monitoring settings 5.2.1 The choice of site guidelines. (1) to reflect the types of road built urban areas (urban expressways, urban trunk road, urban sub-distributors, including rail transportation to go ) Traffic noise emission characteristics of the gallery through the city's roads and highways. (2) to reflect the different characteristics of the road (to consider the type of vehicle, traffic, vehicle speed, road construction, road width, sensitive Buildings distribution, etc.) traffic noise emission characteristics. (3) road traffic noise monitoring sites Number. huge, mega-cities ≥100 points; cities ≥80 months; medium-sized city ≥ 50; ≥20 a small city. A measuring point can represent a road or more similar. According to the road long road all types of proportional distribution point Spaces. 5.2.2 Tap measured between the intersection of the two roads, a distance from any intersection is greater than 50 m, less than 100 m sections of selected sections of the mid-point, Measuring point is located on the sidewalk from the road (including the slow lane) 20 cm at the monitoring site height from the ground is 1.2 ~ 6.0 m. Measuring point should be avoided Interference open-road traffic sources, pointing to the microphone sound source under test. 5.2.3 monitoring sites see basic information content specified in Schedule 2. Frequency, time, and measuring the amount of 5.3 road traffic monitoring 5.3.1 Daytime monitoring once a year, monitoring should be within the normal daytime working hours, and should cover the entire working hours. 5.3.2 Monitoring at night once every five years, in the third year of each five-year plan for monitoring, surveillance begins the night start time. 5.3.3 Monitoring should be arranged during the annual spring or autumn, each city should be relatively fixed monitoring date, monitoring should avoid holidays And non-normal working day. 5.3.4 Each measuring point measured 20 min equivalent sound level Leq, sound recording cumulative percentile level L10, L50, L90, Lmax, Lmin and standard deviation Difference (SD), classification (large cars, small cars) recorded traffic. 5.4 Results and evaluation of road traffic monitoring 5.4.1 Monitoring data should be specified in Schedule 5 content recording. Monitoring statistics provided by the contents of Schedule 8 reported. 5.4.2 road traffic noise monitoring link length equivalent sound using the weighted arithmetic average method, according to equation (2) calculation of urban road cross Pass noise average. () Σ × = ii Lll (2) Where. L - average daytime equivalent sound level of road traffic (dL) or night average equivalent (nL), dB (A); l - Monitoring of the total length of the road, Σ ill , M; li - the length of the first section of the measuring point i representative, m; Li - the i-th measuring point measured equivalent sound level, dB (A). 5.4.3 road traffic noise intensity level averages in Table 2 were evaluated. Table 2 Classification of road traffic noise intensity Unit. dB (A) Level one two three four five Average daytime equivalent sound level (dL) ≤68.0 68.1 ~ 70.0 70.1 ~ 72.0 72.1 ~ 74.0 > 74.0 Night average equivalent (nL) ≤58.0 58.1 ~ 60.0 60.1 ~ 62.0 62.1 ~ 64.0 > 64.0 Road traffic noise strength rating "a" to "five" may correspond evaluated as "good", "better", "general", "less Poor "and" poor. "6 Sound Environment Monitoring6.1 Ribbon monitoring purposes Evaluation of Sound Environment area monitoring sites in daytime and nighttime Status; reflect the functional areas of urban acoustic environment monitoring sites Quality change with time status. Point 6.2 Ribbon monitoring settings 6.2.1 Monitoring function area using Appendix B GB 3096 sentinel surveillance method. 6.2.2 in accordance with Appendix B GB 3096 census monitoring method, various functional areas average crude equivalent sound elect its equivalent sound level with the Ribbon No significant differences in grade, to reflect the kind of acoustic environment functional areas feature a number of measurement points, and then determine the function of this area based on the following principles Sentinel monitoring sites. (1) monitoring instruments to meet the test conditions, safe and reliable. (2) potential energy monitoring point long-term stability. (3) can avoid reflecting surface and the fixed noise sources nearby. (4) monitoring sites should take into account the administrative division. (5) 4 class acoustic environment functional areas choose a noise-sensitive area of the building. 6.2.3 Ribbon monitoring sites Number. huge, mega-cities ≥20 months, a big city ≥15, ≥10 medium-sized city, a small city ≥7 months. The number of monitoring sites to determine the proportion of various types of functional areas according to their proportion of urban functional area. 6.2.4 monitoring sites from the ground height 1.2m or more. 6.2.5 monitoring sites, see the basic information content specified in Schedule 3. 6.3 Ribbon monitoring frequency, and measuring the amount of time 6.3.1 Each quarterly monitoring once a year, the city each monitoring date should be relatively fixed. 6.3.2 Each monitoring sites every 24 hours of continuous monitoring, recording hour equivalent sound level Leq, hours of cumulative percentile sound level L10, L50, L90, Lmax, Lmin and the standard deviation (SD). 6.3.3 Monitoring should avoid holidays and non-normal working day. 6.4 Ribbon results of monitoring and evaluation 6.4.1 Monitoring data should be specified in Schedule 6 content recording. Monitoring statistics provided by the contents of Schedule 9 reported. 6.4.2 The functional areas of a continuous 16 hours in daytime and nighttime equivalent sound level measured eight hours of energy were average, according to equation (3) And (4) to calculate equivalent sound daytime and night equivalent sound level. ⎟⎠ ⎞⎜⎝ ⎛ = Σ 1.010 1lg10 iL (3) ⎟⎠ ⎞⎜⎝ ⎛ = Σ 1.010 1lg10 iL (4) Where. Ld - daytime equivalent sound level, dB (A); Ln - night equivalent sound level, dB (A); Li - day or night hour equivalent sound level, dB (A). 6.4.3 Each monitoring sites day and night equivalent sound level, according to GB 3096 in the corresponding environmental noise limits independent evaluation. 6.4.4 functional areas according to statistics were monitored at daytime, nighttime compliance rate. 6.5 Sound Environment Quality time profile 6.5.1 In every hour equivalent sound level as measured by the ordinate, time series abscissa, obtained a 24-hour sound level change map Shaped, used to represent environmental noise monitoring sites Ribbon time distribution. 6.5.2 with a little bit of the same class or ribbon draw overall time distribution, using hour equivalent sound level corresponding to the arithmetic average of the hour The method of calculation.7 monitoring sites adjustment7.1 Urban Environmental Noise monitoring sites and the location has been determined height can not be arbitrarily changed. When change the status quo established by point, When Spot Location requirement to specify when the data submitted do not conform. 7.2 monitoring sites in principle on a five-year adjustment 1 times. Urban built-up area expanded, adjusted points required, should be kept in the original prison Measured points premise extension plus set point. When the city built-up area expanded more than 50%, can be re-laid monitoring sites. 7.3 monitoring sites for approval to perform in accordance with relevant regulations. 7.4 implementation of the new point adjustment start time for the first year of each five-year plan.8 urban acoustic environment monitoring reportUrban acoustic environment monitoring report shall include the following. (1) Overview. schematic description of monitoring profiles and sound environmental monitoring results. (2) regional acoustic environmental monitoring and assessment results. (3) the results of the monitoring and evaluation of road traffic acoustic environment. (4) Acoustic Monitoring and Evaluation of the environmental function area. (5) correlation analysis. (6) Conclusions.9 Quality Assurance and Quality Control9.1 Monitoring personnel requirements Where undertake noise monitoring work should get job qualification certificate. 9.2 measurement requirements 9.2.1 Precision measuring instruments noise monitoring, meteorological conditions and sampling methods should be consistent with the corresponding requirements of GB 3096. 9.2.2 noise measurement instruments before and after each measurement shall be carried out in the field with the acoustic calibration sound calibrators, its front and rear calibration deviation is not shown It should be greater than 0.5 dB, otherwise the measurement is invalid. When measuring the need to use an extension cable, measuring instruments should be calibrated in conjunction with the extension cable. 9.2.3 monitoring sites according to the standards laid implementation should not be artificially reduce measurement Select the measurement point. 9.2.4 Urban Acoustic Environment routine monitoring should be carried out within the specified time, can not be selected at random monitoring time or press the pause button. Regional monitoring Ribbon and monitoring process, all natural society possible sound (such as. cries, voices, children crying, whistle Etc.), should not be excluded. 9.2.5 conditional city should implement automatic monitoring function area, the implementation of the Sound Environment automatic monitoring of the city, reported the first quarterly Month 10th day (normal working day) monitoring data, such data does not comply with the conditions under surveillance reported extended day monitoring data, After the introduction of the number of reported noise automatic monitoring according to their specification requirements. 9.2.6 such as small size of the city does not have the minimum requirements laid point, point number can be reduced accordingly. 9.3 Monitoring Record Complete required records and fill in the relevant monitoring table.Appendix A(Informative) Urban acoustic environment monitoring sites were the basic information table, table and record the results tables Schedule 1 regional acoustic environment monitoring sites basic information table Schedule 2 road traffic acoustic environment monitoring sites basic information table Schedule 3 Sound Environment Monitoring Sites basic information table Schedule 4 regional acoustic environmental monitoring record form Schedule 5 road traffic acoustic environment monitoring record form Schedule 6 Sound Environment 24-hour monitoring record form Schedule 7 regional acoustic environmental monitoring results tables Schedule 8 road traffic sound environmental monitoring results tables Schedule 9 Sound Environment Monitoring Results Statistics Schedule 1 regional acoustic environment monitoring sites basic information table Year. 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