ASTM D4804-2003 测定非硬质固体塑料易燃性的标准试验方法

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【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】:ASTMD4804-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:易燃性;垂直;塑料;试验
【英文主题词】:flammability;plastics;nonrigid;plastics;solid;verticalposition
【摘要】:Thetestresultsrepresenttheafterflameandafterglowtimes,inseconds,foramaterialundertheconditionsofthetest.Theafterflameandafterglowtimesandotherburningphenomenawillvarywiththickness.Testdatashouldonlybecomparedwithdataformaterialofcomparablethickness.Usefulinformationmaybeobtainedfromaplotofafterflameandafterglowtimesversusthickness.Theeffectofmaterialthickness,colors,additives,deterioration,andpossiblelossofvolatilecomponentsismeasurable.Theresultsserveasareferenceforcomparingtherelativeperformanceofmaterialsandcanbeanaidinmaterialselection.Inthisprocedure,thespecimensaresubjectedtooneormorespecificsetsoflaboratorytestconditions.Ifdifferenttestconditionsaresubstitutedortheend-useconditionsarechanged,itmaynotbepossiblebyorfromthistestmethodtopredictchangesinthefire-test-responsecharacteristicsmeasured;therefore,theresultsarevalidonlyforthefire-testexposureconditionsdescribedinthistestmethod.1.1Thesefire-test-responsetestmethodsdescribesmall-scalelaboratoryproceduresfordeterminingthecomparativeburningcharacteristicsofsolidplasticmaterialsthat,duetospecimenthinnessandnonrigidity,maydistortorshrinkwhentestedusingTestMethodD3801.Aflameisappliedtothebaseofspecimensheldinaverticalpositionandtheextinguishingtimesaredetermineduponremovalofthetestflame.1.2TheclassificationsystemdescribedinAppendixX1isintendedforqualityassuranceandthepreselectionofcomponentmaterialsforproducts.1.3Thisstandardmeasuresanddescribestheresponseofmaterials,products,orassembliestoheatandflameundercontrolledconditions,butdoesnotbyitselfincorporateallfactorsrequiredforfirehazardorfireriskassessmentofthematerials,products,orassembliesunderactualfireconditions.Note18212;ThesetestmethodsandISO9773aretechnicallyequivalent.Note28212;Forrateofburningofnonrigidsolidplasticsinahorizontalposition,formerlyTestMethodBofthesetestmethods,seeTestMethodD635,section9.4.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeWarningin6.1.
【中国标准分类号】:C80;G31
【国际标准分类号】:
【页数】:6P.;A4
【正文语种】: