【英文标准名称】:TestMethodforVaporPressureofGasolineandGasoline-OxygenateBlends(DryMethod)
【原文标准名称】:汽油和汽油氧化混合物的蒸汽压力试验方法(烘干法)
【标准号】:ANSI/ASTMD4953-2006
【标准状态】:作废
【国别】:美国
【发布日期】:2006
【实施或试行日期】:2006-07-18
【发布单位】:美国国家标准学会(US-ANSI)
【起草单位】:ANSI
【标准类型】:()
【标准水平】:()
【中文主题词】:汽油;试验;蒸气压力
【英文主题词】:Gasoline;Testing;Vapourpressure
【摘要】:Thistestmethodcoversandisapplicabletogasolinesandgasoline-oxygenateblendswithavaporpressurerangefrom35to100kPa(5to15psi)(seeNote2).Thistestmethod,amodificationofTestMethodD323(ReidMethod),providestwoprocedurestodeterminethevaporpressure(Note1)ofgasolineandgasoline-oxygenateblends.Note0Becausetheexternalatmosphericpressureiscounteractedbytheatmosphericpressureinitiallypresentintheairchamber,thisvaporpressureisanabsolutepressureat37.8?C(100?F)inkilopascals(pounds-forcepersquareinch).Thisvaporpressurediffersfromthetruevaporpressureofthesampleduetosomesmallvaporizationofthesampleandairintheconfinedspace.Note0Vaporpressureofgasolineorgasoline-oxygenateblendsbelow35kPa(5psi)orgreaterthan100kPa(15psi)canbedeterminedwiththistestmethodbuttheprecisionandbias(Section)donotapply.Formaterialswithavaporpressuregreaterthan100kPa(15psi),usea0to200kPa(0to30psi)gaugeasspecifiedintheannexofTestMethodD323.Somegasoline-oxygenateblendsmayshowahazewhencooledto0to1?C.Ifahazeisobservedin9.4,itshallbeindicatedinthereportingofresults.Theprecisionandbiasstatementsforhazysampleshavenotbeendetermined(seeNote7).ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E31
【国际标准分类号】:75_160_20
【页数】:
【正文语种】:英语