ASTM D7097-2006a 用热氧化机油模拟试验测定中等高温活塞沉积物的标准试验方法.TEOSTMHT

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【英文标准名称】:StandardTestMethodforDeterminationofModeratelyHighTemperaturePistonDepositsbyThermo-OxidationEngineOilSimulationTest-TEOSTMHT
【原文标准名称】:用热氧化机油模拟试验测定中等高温活塞沉积物的标准试验方法.TEOSTMHT
【标准号】:ASTMD7097-2006a
【标准状态】:现行
【国别】:
【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】:D02.09.0G
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:沉积物;测定;发动机油;发动机;高温;工业用油;润滑剂;中等的;氧化;活塞;模拟;试验
【英文主题词】:deposits;engineoil;oxidation;thermaldecomposition;thermaloxidation
【摘要】:Thetestmethodisdesignedtopredictthedeposit-formingtendenciesofengineoilinthepistonringbeltandupperpistoncrownarea.CorrelationhasbeenshownbetweentheTEOSTMHTprocedureandtheTU3MHPeugeotenginetestindepositformation.Suchdepositsformedinthering-beltareaofareciprocatingenginepistoncancauseproblemswithengineoperationandlongevity.ItisoneoftherequiredtestmethodsinSpecificationD4485todefineAPICategory-Identifiedengineoils.61.1Thistestmethodcoverstheproceduretodeterminethemassofdepositformedonaspeciallyconstructedtestrodexposedtorepetitivepassageof8.5gofengineoilovertherodinathinfilmunderoxidativeandcatalyticconditionsat285C.TherangeofapplicabilityoftheModeratelyHighTemperatureThermo-OxidationEngineTest(TEOSTMHT)testmethodasderivedfromaninterlaboratorystudyisapproximately10to100mg.However,experienceindicatesthatdepositvaluesfrom1to150mgorgreatermaybeobtained.1.2Thistestmethodusesapatentedinstrument,methodandpatented,numbered,andregistereddepositorrodstraceabletothemanufacturerandmadespecificallyforthepracticeandprecisionofthetestmethod.Note1ASTMInternationaltakesnopositionrespectingthevalidityofanypatentrightsassertedinconnectionwithanyitemmentionedinthisstandard.Usersofthisstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,areentirelytheirownresponsibility.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.AlthoughnotanSIunit,thespecialname,litre(L)isallowedbySIforthecubicdecimetre(dm3)andthemillilitre(mL)fortheSIcubiccentimetre(cm3).1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E34
【国际标准分类号】:75_100
【页数】:15P.;A4
【正文语种】: