1、Designation:E199811(Reapproved 2018)Standard Guide forAssessing Depressurization-Induced Backdrafting andSpillage from Vented Combustion Appliances1This standard is issued under the fixed designation E1998;the number immediately following the designation indicates the year oforiginal adoption or,in
2、the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.Asuperscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This guide describes and compares different methods forassessing the potential for,or exis
3、tence of,depressurization-induced backdrafting and spillage from vented residentialcombustion appliances.1.2 Assessment of depressurization-induced backdraftingand spillage is conducted under either induced depressurizationor natural conditions.1.3 Residential vented combustion appliances addressed
4、inthis guide include hot water heaters and furnace.The guide alsois applicable to boilers.1.4 The methods given in this guide are applicable toCategory I(draft-hood-and induced-fan-equipped)furnaces.The guide does not apply to Category III(power-vent-equipped)or Category IV(direct-vent)furnaces.1.5
5、The methods in this guide are not intended to identifybackdrafting or spillage due to vent blockage or heat-exchanger leakage.1.6 This guide is not intended to provide a basis fordetermining compliance with code requirements on applianceand venting installation,but does include a visual assessmentof
6、 the installation.This assessment may indicate the need for athorough inspection by a qualified technician.1.7 Users of the methods in this guide should be familiarwith combustion appliance operation and with making house-tightness measurements using a blower door.Some methodsdescribed in this guide
7、 require familiarity with differential-pressure measurements and use of computer-based data-logging equipment.1.8 The values stated in SI units are to be regarded asstandard.No other units of measurement are included in thisstandard.1.9 This guide does not purport to address all safetyconcerns,if an
8、y,associated with its use.It is the responsibilityof the user to establish appropriate safety,health,and envi-ronmental practices and to determine the applicability ofregulatory limitations prior to use.Carbon monoxide(CO)exposure or flame roll-out may occur when performing certainprocedures given i
9、n this guide.See Section 7,for precautionsthat must be taken in conducting such procedures.1.10 This international standard was developed in accor-dance with internationally recognized principles on standard-ization established in the Decision on Principles for theDevelopment of International Standa
10、rds,Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade(TBT)Committee.2.Referenced Documents2.1 ASTM Standards:2D1356 Terminology Relating to Sampling and Analysis ofAtmospheresE631 Terminology of Building ConstructionsE779 Test Method for DeterminingAir Lea
11、kage Rate by FanPressurization2.2 CAN/CGSB Standard:3CAN/CGSB 51.71 The Spillage TestMethod to Determinethe Potential for Pressure-Induced Spillage from Vented,Fuel-Fired;Space HeatingAppliances;Water Heaters,andFireplaces2.3 ANSI Standard:4ANSI Z21.47 Gas-fired Central Furnace2.4 NFPA Standard:5NFP
12、A 54 National Fuel Gas Code1This guide is under the jurisdiction of ASTM Committee E06 on Performanceof Buildings and is the direct responsibility of Subcommittee E06.41 on AirLeakage and Ventilation Performance.Current edition approved July 1,2018.Published July 2018.Originally approvedin 1999.Last
13、 previous edition approved in 2011 as E1998 11.DOI:10.1520/E1998-11R18.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM web
14、site.3Available from Canadian General Standards Board(CGSB),11 Laurier St.,Phase III,Place du Portage,Gatineau,Quebec K1A0S5,Canada,http:/www.tpsgc-pwgsc.gc.ca/ongc-cgsb.4Available from American National Standards Institute(ANSI),25 W.43rd St.,4th Floor,New York,NY 10036,http:/www.ansi.org.5Availabl
15、e from National Fire Protection Association(NFPA),1 BatterymarchPark,Quincy,MA 02169-7471,http:/www.nfpa.org.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United StatesThis international standard was developed in accordance with internationally recogn
16、ized principles on standardization established in the Decision on Principles for theDevelopment of International Standards,Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade(TBT)Committee.1 3.Terminology3.1 Definitions:3.1.1 For definitions of general terms related to buildingconstruction used in this specification,refer to TerminologyE631,and for general terms related to sampling and analysis ofatmospheres,refer to Terminology D1356.3.2 Definitions of
