标准名称：	安全玻璃碎片曝光控制仪
发布日期：
实施日期：	1991-01-01
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【英文标准名称】:StandardTestMethodforRamsbottomCarbonResidueofPetroleumProducts
【原文标准名称】:石油产品的兰氏残炭标准试验方法
【标准号】:ASTMD524-2010
【标准状态】:现行
【国别】:
【发布日期】:2010
【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】:残炭;石油产品;兰氏;残渣-石油产品;燃油燃烧器;残炭(石油产品);生焦特性;燃料油;高温分解;兰氏残炭
【英文主题词】:carbonresidue;petroleumproducts;Ramsbottom;Residue--petroleumproducts;Burnerfueloils;Carbonresidue(petroleumproducts);Coke-formingpropensities;Fueloils;Pyrolysis;Ramsbottomcarbonresidue
【摘要】:Thecarbonresiduevalueofburnerfuelservesasaroughapproximationofthetendencyofthefueltoformdepositsinvaporizingpot-typeandsleeve-typeburners.Similarly,providedalkylnitratesareabsent(orifpresent,providedthetestisperformedonthebasefuelwithoutadditive)thecarbonresidueofdieselfuelcorrelatesapproximatelywithcombustionchamberdeposits.Thecarbonresiduevalueofmotoroil,whileatonetimeregardedasindicativeoftheamountofcarbonaceousdepositsamotoroilwouldforminthecombustionchamberofanengine,isnowconsideredtobeofdoubtfulsignificanceduetothepresenceofadditivesinmanyoils.Forexample,anash-formingdetergentadditivecanincreasethecarbonresiduevalueofanoilyetwillgenerallyreduceitstendencytoformdeposits.Thecarbonresiduevalueofgasoilisusefulasaguideinthemanufactureofgasfromgasoil,whilecarbonresiduevaluesofcrudeoilresiduum,cylinderandbrightstocks,areusefulinthemanufactureoflubricants.1.1Thistestmethodcoversthedeterminationoftheamountofcarbonresidue(Note1)leftafterevaporationandpyrolysisofanoil,anditisintendedtoprovidesomeindicationofrelativecoke-formingpropensity.Thistestmethodisgenerallyapplicabletorelativelynonvolatilepetroleumproductswhichpartiallydecomposeondistillationatatmosphericpressure.Thistestmethodalsocoversthedeterminationofcarbonresidueon10%(V/V)distillationresidues(seeSection10).Petroleumproductscontainingash-formingconstituentsasdeterminedbyTestMethodD482,willhaveanerroneouslyhighcarbonresidue,dependingupontheamountofashformed(Notes2and3).Note18212;Thetermcarbonresidueisusedthroughoutthistestmethodtodesignatethecarbonaceousresidueformedduringevaporationandpyrolysisofapetroleumproduct.Theresidueisnotcomposedentirelyofcarbon,butisacokewhichcanbefurtherchangedbypyrolysis.Thetermcarbonresidueiscontinuedinthistestmethodonlyindeferencetoitswidecommonusage.Note28212;ValuesobtainedbythistestmethodarenotnumericallythesameasthoseobtainedbyTestMethodD189,orTestMethodD4530.Approximatecorrelationshavebeenderived(seeFig.X2.1)butneednotapplytoallmaterialswhichcanbetestedbecausethecarbonresiduetestisapplicabletoawidevarietyofpetroleumproducts.TheRamsbottomCarbonResiduetestmethodislimitedtothosesamplesthataremobilebelow90x00B0;C.Note38212;Indieselfuel,thepresenceofalkylnitratessuchasamylnitrate,hexylnitrate,oroctylnitrate,causesahighercarbonresiduevaluethanobservedinuntreatedfuel,whichcanleadtoerroneousconclusionsastothecoke-formingpropensityofthefuel.ThepresenceofalkylnitrateinthefuelcanbedetectedbyTestMethodD4046.Note48212;ThetestprocedureinSection10isbeingmodifiedtoallowtheuseofa100x2013;mLvolumeautomateddistillationapparatus.Noprecisiondataisavailablefortheprocedureatthistime,butaroundrobinisbeingplannedtodevelopprecisiondata.The250x2013;mL......
【中国标准分类号】:E30
【国际标准分类号】:75_080
【页数】:9P.;A4
【正文语种】: