ASTM D3806-1998(2004) 小规模评价阻燃涂料的标准试验方法(2英尺通道法)

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【英文标准名称】:StandardTestMethodofSmall-ScaleEvaluationofFire-RetardantPaints(2-FootTunnelMethod)
【原文标准名称】:小规模评价阻燃涂料的标准试验方法(2英尺通道法)
【标准号】:ASTMD3806-1998(2004)
【标准状态】:现行
【国别】:
【发布日期】:1998
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:D01.21
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:试验;涂漆;耐熔的;颜色;覆层;涂料;评定
【英文主题词】:fire-retardant;flamespread;paints;tunnelmethod
【摘要】:Anumberoflaboratoryproceduresareusedtoevaluatetheeffectivenessoffire-retardantandfire-resistanttreatmentsandcoatings.Ingeneral,thesemethodsmeasurethethreestagesoffiredevelopment:(1)ignition;(2)flamespread(rateofgrowthofthefire);and(3)conflagrationextent.Whileallthreeareofextremeimportance,flamespreadhasbeenrecognizedasthemainfactorassociatedwithtestingfire-retardantcoatings.FlamespreadratingsbaseduponTestMethodE84haveacquiredcommonacceptancebyregulatoryagencies,butsuchlarge-scaletestsareseldompracticalduringthedevelopmentormodificationofafire-retardantcoating.Thistestmethodprovidestherelativeflamespreadofexperimentalcoatingsusingsmalltestspecimens.Bycalibratingthe2-foottunnelwithTestMethodE84-ratedfire-retardantpaint,resultsobtainedbythistestmethodshouldbeindicativeofthoseobtainedwithalargespecimenintheTestMethodE84tunnel.1.1Thistestmethoddeterminestheprotectionacoatingaffordsitssubstrate,andthecomparativeburningcharacteristicsofcoatingsbyevaluatingtheflamespreadoverthesurfacewhenignitedundercontrolledconditionsinasmalltunnel.Thisestablishesabasisforcomparingsurface-burningcharacteristicsofdifferentcoatingswithoutspecificconsiderationofalltheend-useparametersthatmightaffectsurface-burningcharacteristicsunderactualfireconditions.1.2Inadditiontotheexperimentalflamespreadrate,theweightofpanelconsumed,timeofafterflamingandafterglow,chardimensionsandindex,andheightofintumescencemaybemeasuredinthistest.However,arelationshipshouldnotbepresumedamongthesemeasurements.1.3Thisstandardshouldbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoheatandflameundercontrolledlaboratoryconditions,andshouldnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardofaparticularenduse.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:G50
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】: