【英文标准名称】:StandardTestMethodforDeterminationofLowLevelsofPhosphorusinILSACGF4andSimilarGradeEngineOilsbyInductivelyCoupledPlasmaAtomicEmissionSpectrometry
【原文标准名称】:用电感耦合等离子体原子辐射光谱测定法测定ILSACGF4和类似级别发动机油中低能磷的标准试验方法
【标准号】:ASTMD7040-2004(2010)
【标准状态】:现行
【国别】:美国
【发布日期】:2004
【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;emission-spectrometry;GF4oils;ICP-AES;inductively-coupledplasmaatomicemissionspectrometry;internalstandard;lubricatingoils;phosphorus;Atomicemissionspectrometry;Engine(lubricating)oils;ICP-AES(inductively-coupledp
【摘要】:Thistestmethodusuallyrequiresseveralminutespersample.OthertestmethodswhichcanbeusedforthedeterminationofphosphorusinlubricatingoilsincludeWDXRFTestMethodD4927andICPAESTestMethodsD4951andD5185.However,thistestmethodprovidesmorepreciseresultsthanTestMethodsD4951orD5185.Lubricatingoilsaretypicallyblendsofadditivepackages,andtheirspecificationsarealsodetermined,inpart,byelementalcomposition.Thistestmethodcanbeusedtodetermineifunusedlubricatingoilsmeetspecificationswithrespecttoelementalcomposition.ItisexpectedthatGF4gradeengineoilsmarketedintheyears2004-2005willhaveamaximumphosphorusconcentrationlevelof500to800mg/kg.Theselimitsarerequiredtominimizepoisoningofautomotiveemissioncontrolcatalystsbyvolatilephosphorusspecies.Itisanticipatedthatthelatergradesofoilsmayhaveevenlowerphosphoruslevels.1.1Thistestmethodcoversthequantitativedeterminationofphosphorusinunusedlubricatingoils,suchasInternationalLubricantStandardizationandApprovalCommittee(ILSAC)GF4andsimilargradeengineoils,byinductivelycoupledplasmaatomicemissionspectrometry.1.2Theprecisionstatementsarevalidfordilutionsinwhichthemass%sampleinsolventisheldconstantintherangeof1to5mass%oil.1.3Theprecisiontablesdefinetheconcentrationrangescoveredintheinterlaboratorystudy(500to800mg/kg).However,bothlowerandhigherconcentrationscanbedeterminedbythistestmethod.ThelowconcentrationlimitsaredependentonthesensitivityoftheICPinstrumentandthedilutionfactor.Thehighconcentrationlimitsaredeterminedbytheproductofthemaximumconcentrationdefinedbythelinearcalibrationcurveandthesampledilutionfactor.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.5Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:6P.;A4
【正文语种】:英语