ASTM D189-2006e2 石油产品康拉特逊残碳值的标准试验方法

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【英文标准名称】:StandardTestMethodforConradsonCarbonResidueofPetroleumProducts
【原文标准名称】:石油产品康拉特逊残碳值的标准试验方法
【标准号】:ASTMD189-2006e2
【标准状态】:现行
【国别】:美国
【发布日期】:2006
【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】:D02.06
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:Conradsoncarbonresidue;lubricants;petroleumproducts;Burnerfueloils;Carbonaceousresidue;Carbonresidue(petroleumproducts);Coke-formingpropensities;Conradsonmethod;Fueloils;Pyrolysis;Residue--petroleumproducts
【摘要】:Thecarbonresiduevalueofburnerfuelservesasaroughapproximationofthetendencyofthefueltoformdepositsinvaporizingpot-typeandsleeve-typeburners.Similarly,providedalkylnitratesareabsent(orifpresent,providedthetestisperformedonthebasefuelwithoutadditive)thecarbonresidueofdieselfuelcorrelatesapproximatelywithcombustionchamberdeposits.Thecarbonresiduevalueofmotoroil,whileatonetimeregardedasindicativeoftheamountofcarbonaceousdepositsamotoroilwouldforminthecombustionchamberofanengine,isnowconsideredtobeofdoubtfulsignificanceduetothepresenceofadditivesinmanyoils.Forexample,anash-formingdetergentadditivemayincreasethecarbonresiduevalueofanoilyetwillgenerallyreduceitstendencytoformdeposits.Thecarbonresiduevalueofgasoilisusefulasaguideinthemanufactureofgasfromgasoil,whilecarbonresiduevaluesofcrudeoilresiduums,cylinderandbrightstocks,areusefulinthemanufactureoflubricants.FIG.1ApparatusforDeterminingConradsonCarbonResidue1.1Thistestmethodcoversthedeterminationoftheamountofcarbonresidue(Note1)leftafterevaporationandpyrolysisofanoil,andisintendedtoprovidesomeindicationofrelativecoke-formingpropensities.Thistestmethodisgenerallyapplicabletorelativelynonvolatilepetroleumproductswhichpartiallydecomposeondistillationatatmosphericpressure.Petroleumproductscontainingash-formingconstituentsasdeterminedbyTestMethodD482orIPMethod4willhaveanerroneouslyhighcarbonresidue,dependingupontheamountofashformed(Note2andNote4).Note18212;Thetermcarbonresidueisusedthroughoutthistestmethodtodesignatethecarbonaceousresidueformedafterevaporationandpyrolysisofapetroleumproductundertheconditionsspecifiedinthistestmethod.Theresidueisnotcomposedentirelyofcarbon,butisacokewhichcanbefurtherchangedbypyrolysis.Thetermcarbonresidueiscontinuedinthistestmethodonlyindeferencetoitswidecommonusage.Note28212;ValuesobtainedbythistestmethodarenotnumericallythesameasthoseobtainedbyTestMethodD524.Approximatecorrelationshavebeenderived(seeFig.X1.1),butneednotapplytoallmaterialswhichcanbetestedbecausethecarbonresiduetestisappliedtoawidevarietyofpetroleumproducts.Note38212;ThetestresultsareequivalenttoTestMethodD4530,(seeFig.X1.2).Note48212;Indieselfuel,thepresenceofalkylnitratessuchasamylnitrate,hexylnitrate,oroctylnitratecausesahigherresiduevaluethanobservedinuntreatedfuel,whichcanleadtoerroneousconclusionsastothecokeformingpropensityofthefuel.ThepresenceofalkylnitrateinthefuelcanbedetectedbyTestMethodD4046.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:7P.;A4
【正文语种】:英语