【英文标准名称】:StandardTestMethodforAutogenousIgnitionTemperatureofLiquidsandSolidsinaHigh-PressureOxygen-EnrichedEnvironment
【原文标准名称】:高压富氧环境中液体和固体的自燃温度用标准试验方法
【标准号】:ASTMG72/G72M-2009
【标准状态】:现行
【国别】:
【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】:G04.01
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:自燃温度;点燃温度;富氧环境;点燃-橡胶/蜂窝材料;液体-实验室设备;氧气材料可混用性;压力试验-泄漏;固态材料;温度试验-化学物品
【英文主题词】:autogenousignitiontemperature;ignitiontemperature;oxygenenrichedenvironment;Ignition--rubber/cellularmaterials;Liquids--laboratoryapplications;Oxygenmaterialcompatibility;Pressuretesting--leaks;Solidphasematerials;Temperaturetests--
【摘要】:Mostorganicliquidsandsolidswilligniteinapressurizedoxidizinggasatmosphereifheatedtoasufficientlyhightemperatureandpressure.Thisprocedureprovidesanumericalvalueforthetemperatureattheonsetofignitionundercarefullycontrolledconditions.Meansforextrapolationfromthisidealizedsituationtothedescription,appraisal,orregulationoffireandexplosionhazardsinspecificfieldsituations,arenotestablished.Rankingoftheignitiontemperaturesofseveralmaterialsinthestandardapparatusisgenerallyinconformitywithfieldexperience.Thetemperatureatwhichmaterialwillignitespontaneously(AIT)willvarygreatlywiththegeometryofthetestsystemandtherateofheating.Toachievegoodinterlaboratoryagreementofignitiontemperatures,itisnecessarytouseequipmentofapproximatelythedimensionsdescribedinthetestmethod.Itisalsonecessarytofollowthedescribedprocedureascloselyaspossible.Thedecompositionandoxidationofsomefullyfluorinatedmaterialsreleasessolittleenergythatthereisnoclear-cutindicationofignition.Norwilltherebeaclearindicationofignitionifasamplevolatilizes,distillingtoanotherpartofthereactionvessel,beforereachingignitiontemperature.1.1Thistestmethodcoversthedeterminationofthetemperatureatwhichliquidsandsolidswillspontaneouslyignite.Thesematerialsmustignitewithoutapplicationofsparkorflameinahigh-pressureoxygen-enrichedenvironment.1.2Thistestmethodisintendedforuseatpressuresof2.1to20.7MPa(300to3000psi).Thepressureusedinthedescriptionofthemethodis10.3MPa(1500psi).Thetestmethod,asdescribed,isforliquidsorsolidswithignitiontemperatureintherangefrom60to425x00B0;C(140to800x00B0;F).1.3Thistestmethodisforhigh-pressurepureoxygen.Thetestmethodmaybeusedinatmospheresfrom0.5%to100%oxygen.1.4Anapparatussuitablefortheserequirementsisdescribed.Thistestmethodcouldbeappliedtohigherpressuresandmaterialsofhigherignitiontemperature.Ifmoresevererequirementsorotheroxidizersthanthosedescribedaredesired,caremustbetakeninselectinganalternativesafeapparatuscapableofwithstandingtheconditions.1.5ThevaluesstatedineitherSIunitsorinch-poundunitsaretoberegardedseparatelyasstandard.Thevaluesstatedineachsystemmaynotbeexactequivalents;therefore,eachsystemshallbeusedindependentlyoftheother.Combiningvaluesfromthetwosystemsmayresultinnon-conformancewiththestandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C67
【国际标准分类号】:13_220_40;13_230
【页数】:6P.;A4
【正文语种】: