【英文标准名称】:StandardTestMethodforDeterminingtheFlammabilityCharacteristicsofNonrigidSolidPlastics
【原文标准名称】:测定非硬质固体塑料易燃性的标准试验方法
【标准号】:ASTMD4804-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D20.30
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:flammability;plastics,nonrigid;plastics,solid;verticalposition;Burningcharacteristics--plastics;Extinguishingcharacteristics;Flammability--plastics;Nonrigidplastics;Rateofburning;Reinforcedthermosettingplastics(RTP);Solidplastics;Th
【摘要】:Thetestresultsrepresenttheafterflameandafterglowtimes,inseconds,foramaterialundertheconditionsofthetest.Theafterflameandafterglowtimesandotherburningphenomenawillvarywiththickness.Testdatashallonlybecomparedwithdataformaterialofcomparablethickness.Theeffectofmaterialthickness,colors,additives,deterioration,andpossiblelossofvolatilecomponentsismeasurable.Theresultsserveasareferenceforcomparingtherelativeperformanceofmaterialsandcanbeanaidinmaterialselection.Inthisprocedure,thespecimensaresubjectedtooneormorespecificsetsoflaboratorytestconditions.Ifdifferenttestconditionsaresubstitutedortheend-useconditionsarechanged,itwillnotalwaysbepossiblebyorfromthistestmethodtopredictchangesinthefire-test-responsecharacteristicsmeasured.Therefore,theresultsarevalidonlyforthefire-testexposureconditionsdescribedinthistestmethod.1.1Thisfire-test-responsetestmethodsdescribesmall-scalelaboratoryproceduresfordeterminingthecomparativeburningcharacteristicsofsolidplasticmaterialsthat,duetospecimenthinnessandnonrigidity,distortorshrinkwhentestedusingTestMethodD3801.Aflameisappliedtothebaseofspecimensheldinaverticalpositionandtheextinguishingtimesaredetermineduponremovalofthetestflame.1.2TheclassificationsystemdescribedinAppendixX1isintendedforqualityassuranceandthepreselectionofcomponentmaterialsforproducts.1.3Thisstandardmeasuresanddescribestheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,products,orassembliesunderactualfireconditions.Note18212;ThisstandardisequivalenttoISO9773.Note28212;Forrateofburningofnonrigidsolidplasticsinahorizontalposition,formerlyTestMethodBofthistestmethod,seeTestMethodD635,section9.4.1.4Firetestingisinherentlyhazardous.Adequatesafeguardsforpersonnelandpropertyshallbeemployedinconductingthesetests.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see6.1.1.
【中国标准分类号】:G31
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】:英语