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【英文标准名称】:StandardTestMethodforDeterminationofAdditiveElements,WearMetals,andContaminantsinUsedLubricatingOilsandDeterminationofSelectedElementsinBaseOilsbyInductivelyCoupledPlasmaAtomicEmissionSpectrometry(ICP-AES)
【原文标准名称】:用感应耦合等离子体原子发射光谱法测定用过润滑油中添加剂元素、磨损金属和污染物以及基础油中挑选元素的标准试验方法
【标准号】:ASTMD5185-2009
【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】:D02.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:additive-elements;aluminum;barium;boron;calcium;chromium;copper;emission-spectrometry;ICP;inductivelycoupledplasmaatomicemissionspectrometry;iron;lead;lubricatingoils;magnesium;manganese;molybdenum;nickel;phosphorous,potassium;sil
【摘要】:Thistestmethodcoverstherapiddeterminationof22elementsinusedlubricatingoilsandinbaseoils,anditprovidesrapidscreeningofusedoilsforindicationsofwear.Testtimesapproximateafewminutespertestspecimen,anddetectabilityformostelementsisinthelowmg/kgrange.Inaddition,thistestmethodcoversawidevarietyofmetalsinvirginandre-refinedbaseoils.Twenty-twoelementscanbedeterminedrapidly,withtesttimesapproximatingseveralminutespertestspecimen.Whenthepredominantsourceofadditiveelementsinusedlubricatingoilsistheadditivepackage,significantdifferencesbetweentheconcentrationsoftheadditiveelementsandtheirrespectivespecificationscanindicatethattheincorrectoilisbeingused.Theconcentrationsofwearmetalscanbeindicativeofabnormalweariftherearebaselineconcentrationdataforcomparison.Amarkedincreaseinboron,sodium,orpotassiumlevelscanbeindicativeofcontaminationasaresultofcoolantleakageintheequipment.Thistestmethodcanbeusedtomonitorequipmentconditionanddefinewhencorrectiveactionsareneeded.Theconcentrationsofmetalsinre-refinedbaseoilscanbeindicativeoftheefficiencyofthere-refiningprocess.Thistestmethodcanbeusedtodetermineifthebaseoilmeetsspecificationswithrespecttometalcontent.1.1Thistestmethodcoversthedeterminationofadditiveelements,wearmetals,andcontaminantsinusedlubricatingoilsbyinductivelycoupledplasmaatomicemissionspectrometry(ICP-AES).ThespecificelementsarelistedinTable1.1.2Thistestmethodcoversthedeterminationofselectedelements,listedinTable1,inre-refinedandvirginbaseoils.1.3Foranalysisofanyelementusingwavelengthsbelow190nm,avacuumorinert-gasopticalpathisrequired.Thedeterminationofsodiumandpotassiumisnotpossibleonsomeinstrumentshavingalimitedspectralrange.1.4Thistestmethodusesoil-solublemetalsforcalibrationanddoesnotpurporttoquantitativelydetermineinsolubleparticulates.Analyticalresultsareparticlesizedependent,andlowresultsareobtainedforparticleslargerthanafewmicrometers.1.5Elementspresentatconcentrationsabovetheupperlimitofthecalibrationcurvescanbedeterminedwithadditional,appropriatedilutionsandwithnodegradationofprecision.1.6Forelementsotherthancalcium,sulfur,andzinc,thelowlimitslistedinTable2andTable3wereestimatedtobetentimestherepeatabilitystandarddeviation.Forcalcium,sulfur,andzinc,thelowlimitsrepresentthelowestconcentrationstestedintheinterlaboratorystudy.1.7ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.8Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.Specificwarningstatementsaregivenin6.1,8.2,and8.4.TABLE1ElementsDeterminedandSuggestedWavelengthsAElementWavelength,nmAluminum
308.22,396.15,309.27
Barium
233.53,455.40,493.41
Boron