ANSI+ASHRAE Standard 62.1 2019 室内空气质量标准.pdf

ASHRAE STANDARD ANSI/ASHRAEStandard62.1-2019 (Supersedes ANSI/ASHRAE Standard 62.1-2016) Includes ANSI/ASHRAE addenda listed in Appendix O Ventilation for Acceptable Indoor Air Quality See Appendix O for approval dates by ASHRAE and the American National Standards Institute. This Standard is under continuous maintenance by a Standing Standard Project Committee (SSPC) for which the Standards Committee has established a documented program for regular publication of addenda or revisions including procedures for timely documented consensus action on requests for change to any part of the Standard. Instructions for how to submit a change can be found on the ASHRAE' website (.ashrae.org/continuous-maintenance). The latest edition of an ASHRAE Standard may be purchased from the ASHRAE website (.ashrae.org) or from ASHRAE Customer Service 1791 Tullie Circle NE Atlanta GA 30329-2305. E-mail: orders@ashrae.org. Fax: 678-539- 2129. Telephone: 404-636-8400 (worldwide) or toll free I-800-527-4723 (for orders in US and Canada). For reprint per- mission go to .ashrae.org/permissions. @ 2019 ASHRAE ISSN 1041-2336 ANSI
ASHRAE Standing Standard Project Committee 62.1 Cognizant TC: 4.3.Ventilation Requirements and Infitration ASHRAE Staff Liaison: Mark Weber Jennifer A Isenbeck Choir (2019) Co-Vice-Choir (20172019) Hoy R. Bohanon Jr Choir (20162019) Wayne R. Thomann Vice-Choir (2019) Co-Vice-Chair (20172019) Nick H. Agopian Henry w. Emst. Jr. Meghan K McNulty Dennis A Stanke Hugo Agular Richard B. Fox Maria A Menchaca Brandan Erica Stewart William P. Bahnfleth Enrica Galaso Charlene W. Bayer Christopher O. Muller Drayton P. Stott Elliott Gall John Nelson Jr. Richard Taft Robin M. Bristol Enrique T. Gonzalez Lisa C. Ng Dean T. Tompkins Lance R. Brown Gregg Gress Laura G. Petrillo-Groh David Vigue Tina M. Brueckner Brian J Hafendorfer Daried C. Pettway Ted Wayne Brendon J. Burley Nathan L. Ho Heather L. Platt Gulledge Josiah Wiley Mark P. Busttner Elioct Horner Stephen Ray Scott D. Willams Jordan D. Clark Eli P. Howard II Daniel J]. Redmond Donald Weekes f. Leonard A Damiano Zalmie Hussein Tom Rice Runming Yao Abdel K. Darwich Jennifer Kane Chandra Sekhar Marwa Zaatari Helen D. Davis Paul J Kitchens Charles J Seyffer James E Dennison Lauren MacGowens Abhinav Shukda pddg1 Stephary 1. Mason Jeffrey K. Smith ASHRAE STANDARDS COMMITTEE 20192020 Wayne H. Stoppelmoor Jr. Choir Susanna S. Hanson Lawrence J. Schoen Drury B. Crawley Vice-Choir Rick M. Heiden Richard T.Swierczyna Steven C. Sil g Jonathan Humble Charles S. Barnaby Srinivas Katipamula Christian R. Taber Niels Bidstrup Essam E. Khall d ipsg Robert B. Burkhead Thomas E. Capplin Kwang Woo Kim Adrienne G. Thomle Larry Kouma Michael W. Woodford Douglas D.Fick Cesar L. Lim Craig P. Wray Michael W. Gallagher Karl L_ Peterman Jaap Hogeling BOD ExO Walter T. Grondzik Erick A. Phelps Malcolm D. Knight CO Steven C. Ferguson Senior Monoger of Standards ThisArianNaial Sard AN) isanvoltary cnsesus Stadard devedud he asics cfASHAE Css is defed by Aerian SPECIAL NOTE National Standards Institute (ANSI) of which ASHRAE is a member and which hs approved this Sandard as an ANS assubstanialagreement reached by directly views and objectionsbeoidered and chat aneffrbemade toward thirresolution. CopliancewihthisStandardis volntary untilandunes alegal jrisdictin and materiall affected interest categories. hisignifes the concurence of more than a smle majority but not necessarilyunanimity. Conenus reqires that al makes pliance mandatory through legislation. ASHRAE bain consenss trough partipatin ofis natinal and intiona mmbers asid scieties and bicre. ASHRAE Standards are pepaedby Prjet Cite apined speiialy fr the purpse wrting he Sndar The Projc Coitee Chr nd Ve-Charmst bemembers fASHRAE whle ther cmmite mmbermy rmay nt beASHRAE memers amust be techicllyqualfed in the suj area of the Standard. Every effort is made to balance the concemed iterests on ll Projec Commites. The Senir Marager ofStandrds of ASHRAE should be conacted fr a. interpretation of the contents of thisStandard b. participation in the next review of the Standard . permission to reprint portions of the Standard. c. offering constructive criticism for improving the Standard o ASHRAE uses its best fforts to promulgate Standands and Guideines for the beefit of the public in ight of aalable infmation and acepted industry practices. DISCLAIMER accordance with ASHRAE's Sandards or Gudelines or that ay tsts nducted under its Stanards or Guidelines wil be nonhazardous orfre from rsk. However ASHRAE does nt guarantee cerify or asure the safety or pefmance of ary products ponents r systems tested installed or perated ASHRAE Standards and Gudelnes are establshed to ssist industry and the public by offering a unifom method of testing fr rating purposes by sgesting sfe ASHRAEINDUSTRIALADVERTISINGPOLICY ON STANDARDS practies in esigning and instalingequipmnt by providing proper deintns of ths equipmnt nd by povding thrinfmatin that may serve o guie te industry. The creatin of ASHRAE Standars andGuidelnesis determined by the need for thm and cofmane to thm is cleely volntary. Inrefengstdd uide ndimring fqt ndin tng dmshlmde ethatd od tht tht he approved by ASHRAE.
CONTENTS ANSI/ASHRAEStandard62.1-2019 VentilationforAcceptableIndoorAir Quality SECTION PAGE Foreword .2 1Purpose. ..2 2 Scope... ..3 3 Definitions ... ...3 4 Outdoor Air Quality.. .... 5 Systems and Equipment. .7 6 Procedures. ...15 7 Construction and System Start-Up. .30 8 Operations and Maintenance .31 9 Normative References.. " Normative Appendix A: Muliple-Zone System Ventilation Efficiency: Altermative Procedure ..36 Normative Appendix B: Separation of Exhaust Outlets and Outdoor Air Intakes.. ..40 Normative Appendix C: Zone Air Distribution Effectiveness: Alternate Procedures... .43 Informative Appendix D: Information on Selected National Standards and Guidelines for PM10 PM2.5 and Ozone .... .45 Informative Appendix E: Acceptable Mass Balance Equations for Use with the IAQ Procedure .. .47 Serving Only Specified Occupancy Categories in Existing Buildings... ..49 Informative Appendix G: Application. .51 Informative Appendix H: Documentation.... .53 Informative Appendix I: Rate Rationale.... .56 Informative Appendix J: Information on Natural Ventilation .64 Informative Appendix K: Compliance... ..67 Informative Appendix L: Ventilation Rate Check Table .71 Informative Appendix M: Informative References . ..75 Informative Appendix N: Indoor Air Quality Procedure (IAQP) .76 Informative Appendix O: Addenda Description Information . ..81 @ 2019 ASHRAE 1791 Tullie Circle NE - Atlanta GA 30329 - .ashrae.org - All rights reserved. ASHRAE is a registered traemark of the American Society ofHeating Refrigerating and Air-Condioning Engineers Inc. ANSI is a registered trademark of the American National Standards Institute.
(This foreword is not part of this standard. It is merely informative and does not contain requirements necessary for conformance to the standard. It has not been processed according to the ANSI requirements for a standard and may contain material that has not been subject to public review or a consensus process. Unresolved objectors on infor- mative material are not offered the right to appeal at ASHRAE or ANSI) FOREWORD Standard 62. 1 has undergone key changes over the years reflecting the ever-expanding body of knowledge experience and research related to ventilation and air quality. While the prpose of the standard remains sonchangedto specify minimum ventilation rates and other measures intended to provide indoor air quality (IAQ) that is acceptable to human occupants and that mintimizes adverse health effectsthe means of achieving this goal have evoved Itsfdi stdded i ij both minimm and remended outdoor airflow rates to obtain acceptable indoor air qualiy for α variety of indoor spaces. In I981 the stcndard recdaced minimum oudoor airflow rates cnd introduced an alternative performance-based approach the IAQ Procedare which allowed for the caicxiation of the amount of outdoor air necessary to maintain the levels of indoor air contaminants below remended limits. In 2004the last time the standard was revised in its entiretythe IAQ Procedere was modijied to improve enforceability bt more significantly the Ventilation Rate Procedure was modified changing both the minimum outdoor airflow rates and the procedures for calculating both zone-level and system-level outdoor airflow rates. Today the standard inciudes three procedres for ventilation design: the IAQ Procecre the Ventia tion Rate Procecdure and the Natural Ventilation Procecdore. The following are among significant changes made in the 2019 edition of the standard: The scope is changed to remove mentary and to more specifically identify occupancies previously not covered. Informative ables fvenrilation rates perunit area are includedfrchecking exsting bild ings and design of new buildings. The Ventilatio Rate Procedre is modified with αnew simplified versionfor detemining E and α more robust option for determining values of E The NatralVenrilation Procedreis signijficantymodified to provde moreacurate calcu- lotion methodology and also define the process for designing an engineered system. Natural ventilation now requires considering the quality of the outdloor air and interaction of the outdoor air with mechanically cooled spaces. Air-cleaning devices that generate ozone are prokibited. Honidiy control reqirements are now expressed as dew point and not as relatve humidity. The standard now defers to ANSI Z9.5 on ventilation for laboratories handling hazardous materials. ▪Patient care spaces in the scope of ASHRAE/ASHE Standard 170 now follow the require- ments of Standard 170; ancillary spaces not previously classified have been added. For more specific information on these nd other chnges made to the stanard refe to Informative Appencdix O. procedures. Addenda are publicly reviewed approved by ASHRAE and ANSI and posted on the ASHRAE website. Change proposals can be submitted online at .asrae.org/ontin Os-mairternance. The project mitee for Standard 62.1 takes formal action on all change proposals received. 1.PURPOSE 1.1 The purpose of this standard is to specify minimum ventilation rates and other measures intended to provide indoor air quality (IAQ) that is acceptable to human occupants and that minimizes adverse health effects. 1.2 This standard is intended for regulatory application to new buildings additions to existing buildings and those changes to existing buildings that are identified in the body of the standard. 1.3 This standard is intnded to be used to guide the improvement of IAQ in existing buildings. 2 ANSI/ASHRAE Standard 62.1-2019
2.SCOPE xspssddeps those within dwelling units in residential ocupancies in which occupants are nontransient. 2.2 This standard defines requirements for ventilation and air-cleaning system design instal- lation missioning and operation and maintenance. 2.3 In addition to ventilation this standard contains requirements related to certain contami nants and contaminant sources including outdoor air construction processes moisture and biological growth. 2.4 This standard does not prescribe specific ventilation rate requirements for the following: a. Spaces that contain smoking or that do not meet the requirements in the standard for sepa- os ss b. Patient care areas not listed in this standard c. Laboratories with hazardous materials 3. DEFINITIONS 3.1 Terminology (See Figure 3-1) acceptable indoor air qnaliy (IAQ): air in which there are no known contaminants at harmful concentrations as determined by cognizant authorities and with which a substantial majority (80% or more) of the people exposed do not express dissatisfaction. air: gmbient air: the air surrounding a building; the source of outdoor air brought into a building. cool air air whose temperature is less than the average space temperature. exhaust air: air removed from a space and discharged to outside the building by means of mechanical or natural ventilation systems. indoor air: the air in an enclosed occupiable space. makeup air: any bination of outdoor and transfer air intended to replace exhaust air and exfiltration. ontdoor ai: ambient air and ambient air that enters a building through a ventilation sys- tem through intentional openings for natural ventilation or by infiltration. primary air: air supplied to the ventilation zone prior to mixing with any locally recircu- lated air. recirculated air: air removed from a space and reused as supply air. return air: air removed from a space to be recirculated or exhausted. oposopu ds oo uoqppe s any bination of outdoor air recirculated air or transfer air. transfer air: air moved from one indoor space to another. e peo ue snd e ono st e e ddns o uood je mo has been treated for the purpose of maintaining acceptable IAQ. air-cleaning system: a device or bination of devices applied to reduce the concentration of airborme contaminants such as microorganisms dusts fumes respirable particles other gir conditioning: the process of treating air to meet the requirements of a conditioned space by controlling its temperature humidity cleanliness and distribution. breathing zone: the region within an occupied space between planes 3 and 72 in. (75 and 1800 mm) above the floor and more than 2 ft (600 mm) from the walls or fixed air-condition- ing equpment. ceifing returm: air removed from the space more than 4.5 ft (1.4 m) above the floor. ceifing supply: air supplied to the space more than 4.5 ft (1.4 m) above the floor. ANSI/ASHRAE Standard 62.1-2019