【英文标准名称】:StandardPracticeforDeterminingLimitsofFlammabilityofChemicalsatElevatedTemperatureandPressure
【原文标准名称】:温度和压力升高时化学药品易燃极限的测定
【标准号】:ASTME918-1983(2005)
【标准状态】:现行
【国别】:
【发布日期】:1983
【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】:E27.04
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:试验;温度;材料;压力;易燃性;最大值
【英文主题词】:
【摘要】:Knowledgeofflammablelimitsatelevatedtemperaturesandpressuresisneededforsafeandeconomicaloperationofsomechemicalprocesses.Thisinformationmaybeneededinordertostartupareactorwithoutpassingthroughaflammablerange,tooperatethereactorsafelyandeconomically,ortostoreorshiptheproductsafely.Limitsofflammabilitydataobtainedinrelativelycleanvesselsmustbecarefullyinterpretedandmaynotalwaysbeapplicabletoindustrialconditions.Surfaceeffectsduetocarbondepositsandothermaterialscansignificantlyaffectlimitsofflammability,especiallyinthefuel-richregion.RefertoBulletin503and627.1.1Thispracticecoversthedeterminationofthelowerandupperconcentrationlimitsofflammabilityofcombustiblevapor-oxidantmixturesattemperaturesupto200176;Candinitialpressuresuptoasmuchas1.38MPa(200psia).Thispracticeislimitedtomixtureswhichwouldhaveexplosionpressureslessthan13.79MPa(2000psia).1.2Thispracticeshouldbeusedtomeasureanddescribethepropertiesofmaterials,products,orassembliesinresponsetoheatandflameundercontrolledlaboratoryconditionsandshouldnotbeusedtodescribeorappraisethefirehazardorfireriskofmaterials,products,orassembliesunderactualfireconditions.However,resultsofthistestmaybeusedaselementsofafireriskassessmentwhichtakesintoaccountallofthefactorswhicharepertinenttoanassessmentofthefirehazardofaparticularenduse.1.3Thisstandardmayinvolvehazardousmaterials,operations,andequipment.Thisstandarddoesnotpurporttoaddressallofthesafetyproblemsassociatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C80
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】: