SAE J369

SAETechnicalStandardsBoardRulesprovidethat:“ThisreportispublishedbySAEtoadvancethestateoftechnicalandengineeringsciences.Theuseofthisreportisentirelyvoluntary,anditsapplicabilityandsuitabilityforanyparticularuse,includinganypatentinfringementarisingtherefrom,isthesoleresponsibilityoftheuser.”SAEreviewseachtechnicalreportatleasteveryfiveyearsatwhichtimeitmaybereaffirmed,revised,orcancelled.SAEinvitesyourwrittencommentsandsuggestions.Copyright©2003SAEInternationalAllrightsreserved.Nopartofthispublicationmaybereproduced,storedinaretrievalsystemortransmitted,inanyformorbyanymeans,electronic,mechanical,photocopying,recording,orotherwise,withoutthepriorwrittenpermissionofSAE.TOPLACEADOCUMENTORDER:Tel:877-606-7323(insideUSAandCanada)Tel:724-776-4970(outsideUSA)Fax:724-776-0790Email:custsvc@sae.orgSAEWEBADDRESS:http://www.sae.orgSURFACEVEHICLESTANDARDJ369REV.MAY2003Issued1969-03Revised2003-05SupersedingJ369JAN1994(R)FlammabilityofPolymericInteriorMaterials—HorizontalTestMethod1.Scope—ThisSAEStandardpertainstoautomotivevehiclesandoff-road,self-propelledworkmachinesusedinconstruction,generalpurposeindustrial,agriculture,forestry,andspecializedminingmachinery.Thisstandarddoesnotaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisdocumenttoestablishsafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.1.1Purpose—Thistestmethodisintendedforburningratemeasurementofpolymericmaterialsusedintheoperatorandpassengercompartmentsasspecifiedbytheapplicablestandard.SAEJ369istechnicallyequivalenttoISO3795,ASTMD5132andFMVSS302.2.References2.1ApplicablePublications—Thefollowingpublicationformsapartofthisspecificationtotheextentspecifiedherein.2.1.1ISOPUBLICATION—AvailablefromANSI,25West43rdStreet,NewYork,NY10036-8002.ISO3795—Roadvehicles,andtractorsandmachineryforagricultureandforestry—Determinationofburningbehaviourofinteriormaterials2.1.2ASTMPUBLICATION—AvailablefromASTM,100BarrHarborDrive,WestConshohocken,PA19428-2959.ASTMD5025—StandardSpecificationforLaboratoryBurnerUsedinSmall-ScaleBurningTestsonPlasticMaterialsASTMD5132—StandardTestMethodforHorizontalBurningRateofFlexibleCellularandRubberMaterialsUsedinOccupantCompartmentsofMotorVehicles2.1.3FEDERALSAFETYSTANDARD—AvailablefromSuperintendentofDocuments,U.S.GovernmentPrintingOffice,WashingtonDC,20402FMVSS302(49CFR571.302)—FlammabilityofInteriorMaterials—PassengerCars,MultipurposePassengerVehicles,Trucks,andBusesSAEJ369RevisedMAY2003-2-3.Classifications3.1(DNI)—Thematerialdoesnotsupportthecombustionduringorfollowingthe15signitionperiodanddoesnottransmitaflamefrontacrosseithersurfacetothefirstscribedline.(Nocalculationisrequired.)Reporttheresultsas:DNI.3.2(SE/0)—Thematerialignitesoneithersurface,buttheflameextinguishesitselfbeforereachingthefirstscribedline.(Nocalculationisrequired.)Reporttheresultsas:SE/0.3.3(SE/NBR)—Thematerialstopsburningbeforeithasburnedfor60sfromthestartoftiming,andhasnotburnedmorethan51mmfromthepointwherethetimingwasstarted.(Nocalculationisrequired.)Reporttheresultsas:SE/NBR.3.4(SE/B)—Whentheleadingflamefrontoneithersurfaceprogressesbeyondthefirstscribedline,butextinguishesitselfbeforereachingthesecondscribedline,timeandmeasureitsprogresstothefurthestpointwheretheburningstopsandcalculateandreporttheburnrateonlyiftheburneddistanceexceeds51mmortheburntimeis60sorgreater.Reporttheresultsas:SE/B.Calculateburnrate.3.5(B)—Thematerialburnsthefull254mm.Reporttheresultsas:B.Calculateburnrate.3.6(RB)—Thematerialtransmitsaflameacrosseithersurfacemorethan51mmbeyondthefirstscribedlineataratetoofasttomeasureaccurately;therefore,nocalculationisrequired.Examplesofthematerialsinthiscategoryareextremelythinfilmsthatburnrapidly,ornappedsurfacesthat“flash.”Reporttheresultsas:RB.4.ApparatusRequired4.1Burner—ATirrill,Bunsen,orequivalentburnerwithagasflowregulatingvalveanda9.5mm±0.3mminsidediametertube,sopositionedinthecabinetthatthecenteroftheendofthespecimenshallbedirectlyabovethetipoftheflamewhenthespecimenisinplace.Theburnertubemaybemountedonthechamberdoorprovidedthealignmentonthespecimenmeetsthepreviousrequirements.FormoredefinitiveinformationontheburnerseeASTMD5025.4.2BurnerFuel—Thegassuppliedtotheburnershallhaveaheatingvalueof37MJ/m3±1MJ/m3regulatedapproximatelyto20kPa.4.3SpecimenHolder—ConsistingoftwoidenticalU-shapedmetalframesmadefromchromeornickel-platedsteel,orothermetalthatwillnotcorrode.ThedimensionsfortheseframesareshowninFigure1.LinesshallbeengravedorscribedonbothsurfacesofeachframelocatedasshowninFigure1.4.4SpecimenHolderSupport—Thespecimenholdershallbesupportedhorizontallysothatthetopoftheburneris19mmbelowthetopsurfaceofthelowerspecimenframe.SAEJ369RevisedMAY2003-3-FIGURE1—SPECIMENHOLDER,CONSISTINGOFTWOIDENTICALU-SHAPEDFRAMES4.5MetalCabinet—Thecabinet(Figure2)forprotectingthespecimenfromdraftsshallbefabricatedfromnoncorrodingmetalandshallbe381mmlong,203mmwide,and356mmhigh.Itshallhavearemovabletopandaglassobservationwindowinfront.Forventilation,thebaseshallhavefive19mmdiameterholesequallyspacedalongeachsideofthecabinet.Inaddition,thereshallbea13mmventilatingclearancerunningaroundtheperimeterofthecabinetjustbelowthetop.Atoneendofthecabinetthereshallbeadoortopermitinsertionofthespecimenholderandthespecimen.Asmallholemaybedrilledinthecabinettoaccommodatethetubingthatconnectsthegaslinetotheburner.Thecabinetshallhave10mmriserstopermitthecirculationofair.FIGURE2—HORIZONTALFLAMMABILITYCABINETSAEJ369RevisedMAY2003-4-4.6CombingDevice—Acombatleast110mminlengthwith7to8smoothroundteethper25mm.4.7TimingDevice—Astopwatchthatwillindicatetimeto0.1ofasecond.5.TestSpecimens—Testaminimumof5specimens,unlessotherwiseagreeduponbybothparties.Inallinstances,thelargestpossiblespecimensizeistobecutfromthematerialuptothestandardspecimensizeof102mmx356mmxthickness.Theminimumwidthandlengthshallbe95mmx300mm.Cutspecimensfromuniformdensitysamples.Themaximumthicknessofanyspecimenshallbe13mm.Ifanymaterialtobetestedexceedsthis,itshallbecuttothepreviousthicknessbyamechanicalprocessappliedtotheside,whichdoesnotfacetheoccupantcompartment,sothatspecimenshallincludetheprimarysurfaceofthepart.Incaseofmaterialsmadeofdifferentcompositionwhicharenotcompositematerials,allthelayerswithinadepthof13mmfromthesurfacefacingtowardstheoccupantcompartmentshallbetestedindividually,asshowninFigure3.Anymaterialthatdoesnotadheretoothermaterialateverypointofcontactshallbetestedseparately.Anymaterialthatadherestoothermaterial(s)ateverypointofcontactshallbetestedasacompositewithothermaterial(s).Recordtheinformationonspecimenpreparationinthetestreport.Forcomposites,laminates,orsurface-treatedsamples,thesidenearesttothecompartmentoccupantshouldbeplacedfacingdownduringtesting.Ifthematerial'sgrainpatternorconstructionissuchthatithasadirectionaleffectontheburningrate,testingshouldbeconductedinboththetransverseandlongitudinaldirections.Wherethemaximumavailablewidthofthespecimenis51mmorlesssothatthesidesofthespecimencannotbeheldinthetwomatchingU-shapedframes,itistobesupportedbytheuseof.25mmwiresofheat-resistantcompositionspanningthetopsurfaceofthebottomU-shapedframeat25mmintervals,asshowninFigure4.TheU-shapedwireframeshallalsobeusedforaspecimenthatsoftensandbendsattheflamingend.FIGURE3—SPECIMENPREPARATION(ILLUSTRATIVEEXAMPLE)MaterialAhasanon-adheringinterfacewithmaterialBandistestedseparately.PartofmaterialBiswithin13mmoftheoccupantcompartmentairspace,andmaterialsBandCadhereateverypointofcontact;thereforeBandCaretestedasacomposite.ThecutisinmaterialCasshown,tomakeaspecimen13mmthick.5.1SelectionandDirection—Shallbeasspecifiedintheapplicablestandard.5.2SurfacePreparation—Whenmaterialstobetestedcontaineitheranappedoratufted-typesurface,thistestspecimenshallbeplacedonahard,flatsurfaceandcombedtwiceagainstthenappriortotesting.SAEJ369RevisedMAY2003-5-FIGURE4—BOTTOMU-SHAPEDWIREFRAMEUSEDFORSPECIMENSTHATARE51mmORLESSINWIDTHORTHATBURNNONUNIFORMLYUSEDINCONJUNCTIONWITHEITHERFRAMESHOWNINFIGURE16.TestProcedure6.1Priortotesting,eachspecimenisconditionedfor24hatatemperatureof23°C±2°Cand50%±5%relativehumidityorasotherwisespecified.6.2Forconvenience,thesamplesmaybestoredupto1hinclosedpolyethylenebagsafterconditioningandpriortotesting.6.3Thetestsshouldbeconductedwiththemetalcabinetinadraft-freefumehoodtopreventfumesfromspreadingthroughouttheroom.Thefacevelocityofthefumehoodshallnotexceed0.4m/s.Theburnroomshallhaveatemperaturebetween15°Cand35°Candarelativehumiditybetween45%and75%.6.4Closetheairintakeportsontheburnerandadjustthegasflowtoproduceaflame38mm±1mminheight.6.5Placethemountedspecimeninahorizontalpositioninthecenterofthecabinet.6.6Positiontheburnersothatthecenterofthebarrelwillbedirectlybelowthecenteroftheopenendofthemountedtestspecimen.6.7Exposethespecimentotheflamefor15s,thenextinguishtheburnerflameorremovetheburnerfromthespecimen.6.8Fromthetimeoftheinitialburnerflamecontactwiththespecimen,observeforanyrapidburningorflamefrontprogressionacrossthetoporbottomsurfaceofthematerial.Begintiming(withoutreferencetothe15sburnerflameapplication),whentheleadingflamefrontreachesthefirstscribedline38mmfromtheopenendoftheU-shapedframe.Iftheleadingflamefrontprogressesmorethan51mmbeyondthefirstscribedlineatsucharapidratethatitcannotbemeasuredwithanydegreeofaccuracy,thematerialshallbeclassifiedasRB.6.9Stopthetimingwhentheflameiseitherextinguishedorhasburnedtheadditional254mmtothesecondengravedlineonthespecimenholder.SAEJ369RevisedMAY2003-6-6.10Record,inseconds,thetimerequiredfortheflametotravelthe254mmbetweenthescribedlinesonthespecimenholder.Or,recordthetimeinsecondsandtheburnedlengthbeyondthe38mmscribedlineiftheflameisextinguishedbeforetravelingthefull254mm6.11UsethefollowingclassificationstoreportthecompleteflammabilityresultsasillustratedinFigure5.FIGURE5—ILLUSTRATIONOFDEFINITIONSFORREPORTINGTESTRESULTS7.CalculatingandRecording—CalculateandrecordtheburnratefortheconditionsSE/B(3.4)andB(3.5)fromEquation1:(Eq.1)where:B=Burnrate,mm/min(roundedtoonedecimal)D=Lengththeflametravelsstartingfromthefirstscribedline,mm(roundedtoonedecimal)T=Time(startingfromthefirstscribedline)fortheflametotravelD,s8.Report—Thefollowinginformationshallbeonthereport.8.1Completeidentificationofthematerialtested,includinggenericdescription,manufacturer,commercialdesignation,andlotnumber,colorandotherinformationasrequested.8.2Directionalityofthespecimens,ifpertinent.8.3Thethicknessandtypeofspecimenstested,thatis,composite,laminate,finishedsection,cellularfoam,etc.8.4Conditioningtreatment.8.5Anypriortreatmentbeforetesting,otherthancutting,trimmingandconditioning.8.6Numberofspecimenstested.8.7Burntdistanceinmm,andburningtime,inseconds.8.8Allcalculatedsinglevaluesofburningrate,inmm/min.B60DT----´=SAEJ369RevisedMAY2003-7-8.9Averageburningrateinmillimetersperminutewhentheflamereachesthespecificendpoint.ReportDandTseparatelyforeachspecimenwhentheflamepropagationstopsbeforereachingtheendpoint.8.10Thereportshallcontainthefollowingstatement:“Thisreportisnotintendedtoreflecthazardspresentedbythisoranyothermaterialunderactualfireconditionsandshallnotbeusedforfireriskassessmentunderactualfireconditions.”9.Notes9.1MarginalIndicia—Thechangebar(l)locatedintheleftmarginisfortheconvenienceoftheuserinlocatingareaswhererevisionshavebeenmadetothepreviousissueofthereport.An(R)symboltotheleftofthedocumenttitleindicatesacompleterevisionofthereport.PREPAREDBYTHESAETEXTILESANDFLEXIBLEPLASTICSCOMMITTEESAEJ369RevisedMAY2003Rationale—ThereareanumberofslightlydifferentversionsoftheFederalregulationMVSS302(49CFR571.302)formotorvehicleinteriormaterialsbeingusedinindustrytoday,includingSAEJ369,ASTMD5132,andISO3795.Thiscreatesconfusionfortestlabsthathavetorunallfourversionsofthetest.ThisrevisionbasicallyharmonizesSAEJ369withASTMD5132,whichisviewedasthemostcomprehensiveandmostreproducibleoftheversions.TherevisiontoSAEJ369includesthefollowingchanges:1.AddReferencestoMVSS302andASTMD5132.2.ChangePerformanceDesignationConventions(UseofSE).3.ProvideReferencetoASTMD5205forBurnerSpecification.4.TightenBurnerFuelHeatContent,SpecifyPressure.5.ExpandSpecimenSectiontoAddressAnisotropicandDirectionalIssues,CompositeIssues,NumberofReps,Etc.6.ReviseConditioningTemperatureandHumidityConditions.7.ProvideHoodVelocityRequirements.RelationshipofSAEStandardtoISOStandardandotherStandards—SAEJ369istechnicallyequivalenttoISO3795,ASTMD5132,andFMVSS302.Application—ThisSAEStandardpertainstoautomotivevehiclesandoff-road,self-propelledworkmachinesusedinconstruction,generalpurposeindustrial,agriculture,forestry,andspecializedminingmachinery.ReferenceSectionISO3795—Roadvehicles,andtractorsandmachineryforagricultureandforestry—DeterminationofburningbehaviourofinteriormaterialsASTMD5025—StandardSpecificationforLaboratoryBurnerUsedinSmall-ScaleBurningTestsonPlasticMaterialsASTMD5132—StandardTestMethodforHorizontalBurningRateofFlexibleCellularandRubberMaterialsUsedinOccupantCompartmentsofMotorVehiclesFMVSS302(49CFR571.302)—FlammabilityofInteriorMaterials—PassengerCars,MultipurposePassengerVehicles,Trucks,andBusesDevelopedbytheSAETextilesandFlexiblePlasticsCommittee