ASTM D7154-2005 航空燃料冻结点的标准试验方法(自动纤维光学法)
作者:标准资料网
时间:2024-05-13 01:32:11
浏览:8347
来源:标准资料网
下载地址: 点击此处下载
【英文标准名称】:StandardTestMethodforFreezingPointofAviationFuels(AutomaticFiberOpticalMethod)
【原文标准名称】:航空燃料冻结点的标准试验方法(自动纤维光学法)
【标准号】:ASTMD7154-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:自动;光学的;冻结点;航空燃料;纤维;试验;液体燃料
【英文主题词】:automaticfreezingpoint;automaticfiberopticalmethod;aviationgasoline;aviationturbinefuels;freezingpoint
【摘要】:Thefreezingpointofanaviationfuelisanindexofthelowesttemperatureofitsutilityforcertainapplications.Solidhydrocarboncrystalscanrestricttheflowoffuelinthefuelsystemoftheaircraft.Thetemperatureofthefuelintheaircrafttanknormallydecreasesduringflightdependingonaircraftspeed,altitude,andflightduration.Thefreezingpointofthefuelmustalwaysbelowerthantheminimumoperationalfueltemperature.Petroleumblendingoperationsrequireprecisemeasurementofthefreezingpoint.Thistestmethodexpressesresultswitharesolutionof0.1x00B0;C.ThistestmethodeliminatesmostoftheoperatortimeandjudgmentrequiredbyTestMethodD2386.WhenthespecificationrequirestheuseofTestMethodD2386,donotsubstitutethistestmethodoranyothermethod.1.1Thistestmethodcoversthedeterminationofthetemperaturebelowwhichsolidhydrocarboncrystalsmayforminaviationturbinefuels.Note18212;ThistestmethoddescribesanalternativeprocedureandautomaticapparatuswhichcloselymimicstheapparatusandproceduredescribedinTestMethodD2386.1.2Themeasuringrangeoftheapparatusisfrom-70to0C,howevertheprecisionstatementswerederivedonlyfromsampleswithfreezingpointtemperaturesfrom-60to-42C.Note28212;Typicalaviationfuelhasfreezingpointtemperaturesinthe-60to-40Crange.1.3Someresultsfromthistestmethod(14%ofsamplesincludedinthe2003roundrobin)incorrectlyidentifiedsamplecontaminationwherenocontaminantswerepresentinthesamples(seeresearchreportforfurtherinformation).1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:8P.;A4
【正文语种】:
【原文标准名称】:航空燃料冻结点的标准试验方法(自动纤维光学法)
【标准号】:ASTMD7154-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【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】:D02.07
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:自动;光学的;冻结点;航空燃料;纤维;试验;液体燃料
【英文主题词】:automaticfreezingpoint;automaticfiberopticalmethod;aviationgasoline;aviationturbinefuels;freezingpoint
【摘要】:Thefreezingpointofanaviationfuelisanindexofthelowesttemperatureofitsutilityforcertainapplications.Solidhydrocarboncrystalscanrestricttheflowoffuelinthefuelsystemoftheaircraft.Thetemperatureofthefuelintheaircrafttanknormallydecreasesduringflightdependingonaircraftspeed,altitude,andflightduration.Thefreezingpointofthefuelmustalwaysbelowerthantheminimumoperationalfueltemperature.Petroleumblendingoperationsrequireprecisemeasurementofthefreezingpoint.Thistestmethodexpressesresultswitharesolutionof0.1x00B0;C.ThistestmethodeliminatesmostoftheoperatortimeandjudgmentrequiredbyTestMethodD2386.WhenthespecificationrequirestheuseofTestMethodD2386,donotsubstitutethistestmethodoranyothermethod.1.1Thistestmethodcoversthedeterminationofthetemperaturebelowwhichsolidhydrocarboncrystalsmayforminaviationturbinefuels.Note18212;ThistestmethoddescribesanalternativeprocedureandautomaticapparatuswhichcloselymimicstheapparatusandproceduredescribedinTestMethodD2386.1.2Themeasuringrangeoftheapparatusisfrom-70to0C,howevertheprecisionstatementswerederivedonlyfromsampleswithfreezingpointtemperaturesfrom-60to-42C.Note28212;Typicalaviationfuelhasfreezingpointtemperaturesinthe-60to-40Crange.1.3Someresultsfromthistestmethod(14%ofsamplesincludedinthe2003roundrobin)incorrectlyidentifiedsamplecontaminationwherenocontaminantswerepresentinthesamples(seeresearchreportforfurtherinformation).1.4ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection7.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:8P.;A4
【正文语种】:
下载地址:
点击此处下载