ASTM D5188-2004a 测定燃料汽-液比温度的试验方法(真空室法)
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【英文标准名称】:StandardTestMethodforVapor-LiquidRatioTemperatureDeterminationofFuels(EvacuatedChamberMethod)
【原文标准名称】:测定燃料汽-液比温度的试验方法(真空室法)
【标准号】:ASTMD5188-2004a
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D02.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:温度;试验;机动车燃料
【英文主题词】:gasoline;gasoline-oxygenateblends;petroleumproducts;T(V/L=20);vapor-liquidratio
【摘要】:Thetendencyofafueltovaporizeinautomotiveenginefuelsystemsisindicatedbythevapor-liquidratioofthefuel.AutomotivefuelspecificationsgenerallyincludeT(V/L=20)limitstoensureproductsofsuitablevolatilityperformance.Forhighambienttemperatures,afuelwithahighvalueofT(V/L=20),indicatingafuelwithalowtendencytovaporize,isgenerallyspecified;converselyforlowambienttemperatures,afuelwithalowvalueofT(V/L=20)isspecified.1.1Thistestmethodcoversthedeterminationofthetemperatureatwhichthevaporformedfromaselectedvolumeofvolatilepetroleumproductsaturatedwithairat0to1C(32to34F)producesapressureofoneatmosphereinanevacuatedchamberoffixedvolume.Thistestmethodisapplicabletosamplesforwhichthedeterminedtemperatureisbetween36and80C(97and176F)andthevapor-liquidratioisbetween8to1and75to1.Note1-Whenthevapor-liquidratiois20:1,theresultisintendedtobecomparabletotheresultsdeterminedbyTestMethodD2533.Note2-Thistestmethodmayalsobeapplicableatpressuresotherthanoneatmosphere,butthestatedprecisionmaynotapply.1.2Thistestmethodisapplicabletobothgasolineandgasoline-oxygenateblends.1.2.1Somegasoline-oxygenateblendsmayshowahazewhencooledto0to1C.Ifahazeisobservedin,itshallbeindicatedinthereportingofresults.Theprecisionandbiasstatementsforhazysampleshavenotbeendetermined(seeNote0).1.3ThevaluesstatedinSIunitesaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarnings,seeand.
【中国标准分类号】:E31
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:
【原文标准名称】:测定燃料汽-液比温度的试验方法(真空室法)
【标准号】:ASTMD5188-2004a
【标准状态】:现行
【国别】:
【发布日期】:2004
【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】:D02.08
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:温度;试验;机动车燃料
【英文主题词】:gasoline;gasoline-oxygenateblends;petroleumproducts;T(V/L=20);vapor-liquidratio
【摘要】:Thetendencyofafueltovaporizeinautomotiveenginefuelsystemsisindicatedbythevapor-liquidratioofthefuel.AutomotivefuelspecificationsgenerallyincludeT(V/L=20)limitstoensureproductsofsuitablevolatilityperformance.Forhighambienttemperatures,afuelwithahighvalueofT(V/L=20),indicatingafuelwithalowtendencytovaporize,isgenerallyspecified;converselyforlowambienttemperatures,afuelwithalowvalueofT(V/L=20)isspecified.1.1Thistestmethodcoversthedeterminationofthetemperatureatwhichthevaporformedfromaselectedvolumeofvolatilepetroleumproductsaturatedwithairat0to1C(32to34F)producesapressureofoneatmosphereinanevacuatedchamberoffixedvolume.Thistestmethodisapplicabletosamplesforwhichthedeterminedtemperatureisbetween36and80C(97and176F)andthevapor-liquidratioisbetween8to1and75to1.Note1-Whenthevapor-liquidratiois20:1,theresultisintendedtobecomparabletotheresultsdeterminedbyTestMethodD2533.Note2-Thistestmethodmayalsobeapplicableatpressuresotherthanoneatmosphere,butthestatedprecisionmaynotapply.1.2Thistestmethodisapplicabletobothgasolineandgasoline-oxygenateblends.1.2.1Somegasoline-oxygenateblendsmayshowahazewhencooledto0to1C.Ifahazeisobservedin,itshallbeindicatedinthereportingofresults.Theprecisionandbiasstatementsforhazysampleshavenotbeendetermined(seeNote0).1.3ThevaluesstatedinSIunitesaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecificwarnings,seeand.
【中国标准分类号】:E31
【国际标准分类号】:
【页数】:5P.;A4
【正文语种】:
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