HJ 949-2018 English PDFUS$369.00 · In stock
Delivery: <= 4 days. True-PDF full-copy in English will be manually translated and delivered via email. HJ 949-2018: Technical specification for investigation on infiltration factor of ambient particulate matter (PM2.5)for civil buildings Status: Valid
Basic dataStandard ID: HJ 949-2018 (HJ949-2018)Description (Translated English): Technical specification for investigation on infiltration factor of ambient particulate matter (PM2.5)for civil buildings Sector / Industry: Environmental Protection Industry Standard Classification of Chinese Standard: Z15 Word Count Estimation: 15,181 Date of Issue: 2018-07-12 Date of Implementation: 2018-07-12 Regulation (derived from): Ministry of Ecology and Environment Announcement No. 18 of 2018 Issuing agency(ies): Ministry of Ecology and Environment HJ 949-2018: Technical specification for investigation on infiltration factor of ambient particulate matter (PM2.5)for civil buildings---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. National Environmental Protection Standard of the People's Republic Civil building environment air particles (PM2.5) Permeability coefficient survey technical specification Technical specification for investigation on infiltration factor of Ambient particulate matter(PM2.5)for civil buildings Published on.2018-07-12 2018-07-12 implementation Ministry of Ecology and Environment released ContentForeword.ii 1 Scope 1 2 Normative references 1 3 Terms and Definitions 1 4 working procedures 2 5 Program development 2 6 Site survey 4 7 Determination of permeability coefficient and expression of results. 5 8 Quality Control and Quality Evaluation 6 Appendix A (informative appendix) Building Climate Division.7 Appendix B (informative appendix) civil building function type.8 Appendix C (informative) Building Features.9 Appendix D (informative appendix) on-site record sample form.10ForewordTo implement the Environmental Protection Law of the People's Republic of China, promote environmental health risk management, and regulate airborne particulate matter (PM2.5) for civil buildings. The investigation of the permeability coefficient and the development of this standard. This standard specifies the working procedures, survey contents, survey methods and techniques for the investigation of the permeability coefficient of airborne particulate matter (PM2.5) in civil buildings. Technical requirements. Appendix A to Appendix D of this standard are informative annexes. This standard is the first release. This standard was formulated by the Science and Technology Standards Department of the Ministry of Ecology and Environment. This standard is mainly drafted by. South China Institute of Environmental Sciences, Fudan University, Dalian University of Technology. This standard was approved by the Ministry of Ecology and Environment on July 12,.2018. This standard is implemented as of the date of promulgation. This standard is explained by the Ministry of Ecology and Environment. Technical Specifications for Investigation of Permeability Coefficient of Airborne Particulate Matter (PM2.5) in Civil Buildings1 Scope of applicationThis standard specifies the working procedures, survey contents, and survey methods for the investigation of the permeability coefficient of airborne particulate matter (PM2.5) in civil buildings. And technical requirements. This standard is applicable to the use of particulate matter (PM2.5) concentration measurement method to carry out the permeability coefficient of airborne particulate matter (PM2.5) in civil construction environment. survey. The investigation of the permeability coefficient of airborne particulate matter (PM10) in civil buildings can be carried out with reference to this standard.2 Normative referencesThis standard refers to the terms of the following documents. For undated references, valid versions (including amendments) apply. In this standard. GB 50178 Building climate zoning standards Statistical processing of GB/T 4883 data and interpretation and interpretation of outliers of normal samples GB/T 8170 Numerical Rounding Rules and Representation and Determination of Limit Values HJ 93 ambient air particulate matter (PM10 and PM2.5) sampler technical requirements and test methods HJ/T 167 Indoor Environmental Air Quality Monitoring Technical Specification QX/T 152 climate season division3 Terms and definitionsThe following terms and definitions apply to this standard. 3.1 Civil building A general term for buildings where people live and perform public activities. [GB 50352-2005, definition 2.0.1] 3.2 Particulate matter (particle size less than or equal to 2.5 m) particulate matter (PM2.5) Particulate matter, also known as fine particles, with aerodynamic equivalent diameter of 2.5 m in ambient air. [GB 3095-2012, definition 3.4] 3.3 PM2.5 permeability coefficient PM2.5 infiltration factor The slope obtained by linear regression using the ambient air PM2.5 concentration as the independent variable and the indoor air PM2.5 concentration as the dependent variable. 3.4 Indoor environment A relatively closed space in which people work, live, socialize, and other activities. [HJ/T 167-2004, definition 3.1] 3.5 Outdoor environment A space outside the relatively closed space in which people work, live, socialize, and otherwise.4 working proceduresCivil construction environment air PM2.5 permeability coefficient survey work procedures including program development, site survey, permeability coefficient determination and results table 4, quality control and quality evaluation, see Figure 1. Figure 1 Working procedure5 Program development5.1 Data collection a) Information on the geographical distribution and climate of the survey area should be collected according to GB 50178, and the architectural climate division of the survey area should be clearly defined. Record A of Table A.1. b) The information, quantity and distribution of civil building function types in the survey area should be collected, and the types of building functions that are of primary concern should be clearly identified. See Table B.1 of Appendix B. c) The building characteristics of the civil buildings in the survey area should be collected, and the characteristics of the buildings that are of primary concern should be clearly identified. See Table C.1 of Appendix C. 5.2 Sample size estimation 5.2.1 Stratification factors According to the purpose of the investigation and the survey area, combined with the zoning of the building climate, the functional type of the civil building, and the characteristic factors of the building For stratification factors, see Table A.1 in Appendix A, Table B.1 in Appendix B, and Table C.1 in Appendix C. 5.2.2 Minimum sample size Use formula (1) to estimate the minimum sample size of a civil structure under a single layer of a functional building. Where. ni - a type of function (i) the minimum sample size under a single layer of a civil building; Uα/2--the corresponding standard normality difference when the significance level is 95%, take 1.96; Σi--a functional type (i) the standard deviation of the PM2.5 permeability coefficient of civil buildings, which can be obtained by consulting the literature or conducting a pre-investigation; Δ--allowing error, generally 15% to 20%; μi--A functional type (i) The arithmetic mean of the PM2.5 permeability coefficient of a civil building can be obtained by consulting the literature or conducting a pre-survey; Deff--design effect value, simple random sampling is taken as 1.0, and other sampling methods are taken as 1.0 to 1.5. 5.2.3 Total sample size Use formulas (2) and (3) to estimate the total sample size of a functional building for civil buildings and all functional types of civil buildings. Where. ni--a type of function (i) the minimum sample size under a single layer of a civil building; Q--the product of the stratification factor, combined with the main factors affecting the PM2.5 permeability coefficient, such as the sample according to the construction climate division 3 layers, divided into 2 layers according to the characteristics of the building, then the product of the stratification factor is 3 × 2 = 6; P--The rate of loss of follow-up on-site investigation, taking 0% to 10%; Ni--Investigate a functional type (i) the total sample size of civil buildings; N--Investigate the total sample size of all functional types of civil buildings. 5.3 Sample selection a) Extract survey buildings. One or several combinations of simple random sampling, systematic sampling, cluster sampling, and stratified sampling may be employed. The method of sampling a functional type of civil building in the survey area to determine the survey building samples. b) Extract the survey room. A residential building with a functional type of residential building, randomly selected from each survey building with no less than one household On-site investigations were conducted in the main activity rooms of the court; for other civil buildings of building function type, no less than one randomly selected from each building The room was investigated on site. c) The investigation room should meet the following requirements. 1) There is no indoor decoration activity within 3 months before the investigation; 2) There is no obvious PM2.5 pollution source indoors, including. no smoking indoors; no open kitchen, no kitchen door closed during cooking It is considered an open kitchen; equipment that has a significant impact on indoor PM2.5, such as printing equipment, air purifiers, is not used during the period of non-use or investigation. Humidifier, aromatherapy, indoor combustion equipment, etc.; 3) The room is connected to the ambient air; 4) Room users should maintain daily living habits during the investigation; 5) Get informed consent from the room user. d) If the survey room selected does not meet the requirements of “c)”, the same type of domestic household or room should be randomly selected in the same building. If the replacement is carried out and the continuous extraction is not satisfied, the survey building and the survey room should be re-extracted. 5.4 Pre-survey a) The survey area and survey sample determination principles. The area selected for the pre-survey and the type of civil building should cover this survey as much as possible. The main stratification factors of concern, the number of surveyed civil buildings selected under each major stratification factor is not less than three. b) Content and requirements. Train the investigator to master the on-site investigation process; investigate and record the selected room according to the investigation process requirements Key issues that may affect the quality of the survey; determine the PM2.5 permeability coefficient of the survey room to obtain PM2.5 penetration of a functional type of civil building The arithmetic mean and standard deviation of the coefficients are used to estimate the minimum sample size. c) Evaluation of results. After the pre-investigation, the feasibility of the survey technical route should be evaluated to identify the factors that may affect the quality of the survey. Key links and propose solutions. 5.5 Determining the survey plan On the basis of clarifying the purpose of the investigation and the object of the investigation, combined with the pre-investigation, the sample size is adjusted, the technical route is improved, and the investigation plan is determined.6 Site investigation6.1 point layout a) Simultaneously set PM2.5 concentration sampling points indoors and outdoors in the survey room. b) The indoor point layout method is performed according to the HJ/T 167 “Distribution and Sampling” section. c) The outdoor point is arranged outside the open window, fixed at 0.5~1 m away from the outer wall of the room, and is separated from the air outlet of the air conditioner and range hood. Outside 1 m and not under the air outlet, the sampling port height of the outdoor sampling instrument and the indoor sampling instrument should be at the same horizontal position. 6.2 Time and frequency a) Indoor and outdoor PM2.5 concentration data should be collected simultaneously. b) According to the QX/T 152 season division principle, the four seasons distinct areas should conduct no less than one-stage on-site investigation in the summer, spring/autumn and winter seasons. In the four seasons, the unidentified areas should conduct no less than one on-site investigation in the summer and winter seasons. Except for interrupting sampling due to force majeure, each period shall be continuous Collect PM2.5 concentration for 7 days (including 5 working days and 2 holidays) and sample continuously for 24 hours per day. c) Stop the sampling in case of force majeure, and wait until the force majeure factor disappears for 24 hours before sampling can be resumed to continuously sample 24 small The time is 1 day, the cumulative sampling period should be 7 days (including 5 working days and 2 holidays), and the cumulative stop sampling time must not exceed 7 Days, otherwise it is necessary to re-run the site investigation. 6.3 Testing equipment Indoor and outdoor sampling should use the same type and type of testing equipment, the testing equipment should meet the following requirements. a) The instrument can be selected by using light scattering method, piezoelectric crystal oscillation method and β-ray method. The instrument should refer to the requirements of HJ 93 before use. The results are compared with the test instruments using the gravimetric method, and the comparison can be used before being used. b) With the collection period setting function. c) With more than 7 days of data storage and output functions, the data output should meet the requirements of calculating the hourly mean. d) After the instrument is powered down, the data can be saved automatically. 6.4 On-site recording On-site investigation should fill in the basic information of the investigation room, investigate the type and characteristics of the building, the layout and sampling situation, etc. See Table D.1 in Appendix D for a table.7 Determination of permeability coefficient and expression of results7.1 Determination of permeability coefficient 7.1.1 PM2.5 concentration data processing ......Tips & Frequently Asked Questions:Question 1: How long will the true-PDF of HJ 949-2018_English be delivered?Answer: Upon your order, we will start to translate HJ 949-2018_English as soon as possible, and keep you informed of the progress. 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