【英文标准名称】:StandardPracticeforCalculationofHazardPotentialFigures-of-MeritforThermallyUnstableMaterials
【原文标准名称】:热不稳定材料危害潜在灵敏值计算的标准实施规程
【标准号】:ASTME1231-2001(2006)
【标准状态】:现行
【国别】:
【发布日期】:2001
【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】:E27.02
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:材料;数量估计;统计学
【英文主题词】:adiabaticdecompositiontemperaturerise;adiabatictemperaturerise;criticaldimension;criticaltemperature;differentialscanningcalorimetry;explosionpotential;hazardpotential;instabilityrating;instantaneouspowerdensity;shocksensitivity;thermalanalysis;thermalhazard;thermalhazardpotential;thermalrunway
【摘要】:Thispracticeprovideseightfigures-of-meritwhichmaybeusedtoestimatetherelativethermalhazardpotentialofthermallyunstablematerials.Sincenumerousassumptionsmustbemadeinordertoobtainthesefigures-of-merit,caremustbeexercisedtoavoidtoorigorousinterpretation(orevenmisapplication)oftheresults.Thispracticemaybeusedforcomparativepurposes,specificationacceptance,andresearch.Itshouldnotbeusedtopredictactualperformance.1.1Thispracticecoversthecalculationofhazardpotentialfigures-of-meritforexothermicreactions,including:Time-to-thermal-runaway,Criticalhalfthickness,Criticaltemperature,AdiabaticdecompositiontemperatureriseExplosionpotential,Shocksensitivity,Instantaneouspowerdensity,andNFPAinstabilityrating.1.2Thekineticparametersneededinthiscalculationmaybeobtainedfromdifferentialscanningcalorimetry(DSC)curvesbymethodsdescribedinotherdocuments.1.3Thistechniqueisthebestapplicabletosimple,singlereactionswhosebehaviorcanbedescribedbytheArrheniusequationandthegeneralratelaw.Forreactionswhichdonotmeettheseconditions,thistechniquemay,withcaution,serveasanapproximation.1.4Thecalculationsandresultsofthispracticemightbeusedtoestimatetherelativedegreeofhazardforexperimentalandresearchquantitiesofthermallyunstablematerialsforwhichlittleexperienceandfewdataareavailable.Comparablecalculationsandresultsperformedwithdatadevelopedforwellcharacterizedmaterialsinidenticalequipment,environment,andgeometryarekeytotheabilitytoestimaterelativehazard.1.5Thefigures-of-meritcalculatedasdescribedinthispracticeareintendedtobeusedonlyasaguidefortheestimationoftherelativethermalhazardpotentialofasystem(materials,container,andsurroundings).Theyarenotintendedtopredictactualthermokineticperformance.Thecalculatederrorsfortheseparametersareanintimatepartofthispracticeandmustbeprovidedtostressthis.Itisstronglyrecommendedthatthoseusingthedataprovidedbythispracticeseektheconsultationofqualifiedpersonnelforproperinterpretation.1.6TheSIunitsarestandard.1.7ThereisnoISOstandardequivalenttothispractice.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C65
【国际标准分类号】:13_230
【页数】:7P.;A4
【正文语种】: