【英文标准名称】:StandardTestMethodforDensity,RelativeDensity,andAPIGravityofLiquidsbyDigitalDensityMeter
【原文标准名称】:数字密度计测定液体密度,相对密度和API度的标准试验方法
【标准号】:ASTMD4052-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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】:D02.04.0D
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:APIGravity;density;digitaldensityanalyzer;petroleumdistillates;petroleumproducts;relativedensity;Density--petroleumproducts;Digitalanalysis;Distillatefuels;NumberCode17.060(Measurementofvolume,mass,density,viscosity)
【摘要】:Densityisafundamentalphysicalpropertythatcanbeusedinconjunctionwithotherpropertiestocharacterizeboththelightandheavyfractionsofpetroleumandpetroleumproducts.Determinationofthedensityorrelativedensityofpetroleumanditsproductsisnecessaryfortheconversionofmeasuredvolumestovolumesatthestandardtemperatureof15x00B0;C.1.1Thistestmethodcoversthedeterminationofthedensity,relativedensity,andAPIGravityofpetroleumdistillatesandviscousoilsthatcanbehandledinanormalfashionasliquidsatthetemperatureoftest,utilizingeithermanualorautomatedsampleinjectionequipment.Itsapplicationisrestrictedtoliquidswithtotalvaporpressures(seeTestMethodD5191)typicallybelow100kPaandviscosities(seeTestMethodD445orD7042)typicallybelowabout15000mm2/satthetemperatureoftest.Thetotalvaporpressurelimitationhowevercanbeextendedto>100kPaprovidedthatitisfirstascertainedthatnobubblesformintheU-shaped,oscillatingtube,whichcanaffectthedensitydetermination.Someexamplesofproductsthatmaybetestedbythisprocedureinclude:gasolineandgasoline-oxygenateblends,diesel,jet,basestocks,waxes,andlubricatingoils.1.1.1Waxeswerenotincludedinthe1999interlaboratorystudy(ILS)samplesetthatwasusedtodeterminethecurrentprecisionstatementsofthemethod,sinceallsamplesevaluatedatthetimewereanalyzedatatesttemperatureof15x00BA;C.Waxsamplesrequireatemperaturecelloperatedatelevatedtemperaturesnecessarytoensurealiquidtestspecimenisintroducedforanalysis.Consultinstrumentmanufacturerinstructionsforappropriateguidanceandprecautionswhenattemptingtoanalyzewaxsampletypes.RefertothePrecisionandBiassectionofthemethodandNote6formoredetailedinformationaboutthe1999ILSthatwasconducted.1.2Incasesofdispute,therefereemethodistheonewheresamplesareintroducedmanuallyasin6.3or6.4,asappropriateforsampletype.1.3Thistestmethodshouldnotbeappliedtosamplessodarkincolorthattheabsenceofairbubblesinthesamplecellcannotbeestablishedwithcertainty.ForthedeterminationofdensityincrudeoilsamplesuseTestMethodD5002.1.4ThevaluesstatedinSIunitsareregardedasthestandard,unlessstatedotherwise,suchasthex201C;torrx201D;unitsofpressureinEq1.Theacceptedunitsofmeasurefordensityaregramspermillilitre(g/mL)orkilogramspercubicmetre(kg/m3).1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,see7.4,7.5,and10.3.
【中国标准分类号】:N51
【国际标准分类号】:
【页数】:8P.;A4
【正文语种】:英语