ASTM D4636-1989(2009) 液压油、飞机涡轮发动机润滑油和其他高精炼油的腐蚀性和氧化稳定性的标准试验方法

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【英文标准名称】:StandardTestMethodforCorrosivenessandOxidationStabilityofHydraulicOils,AircraftTurbineEngineLubricants,andOtherHighlyRefinedOils
【原文标准名称】:液压油、飞机涡轮发动机润滑油和其他高精炼油的腐蚀性和氧化稳定性的标准试验方法
【标准号】:ASTMD4636-1989(2009)
【标准状态】:现行
【国别】:美国
【发布日期】:1989
【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】:D02.09.0D
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:hydraulicfluid;lubricant;oxidationstability;Aircraftmaterials/applications(corrosiontesting);Aviationturbinefuels;Corrosion--petroleumproducts;Hydraulicfluids/oils;Lubricants(fluid);Oxidativestability;Petroleumproducts;Refinedoil
【摘要】:Thistestmethodsimulatestheenvironmentencounteredbyfullyformulatedlubricatingfluidsinactualserviceandusesanacceleratedoxidationratetopermitmeasurableresultstobeobtainedinareasonabletime.Theuseofmetalsprovidescatalyticreactivesurfacesofthosematerialscommonlyfoundinrealsystems.Thehightemperatureandairagitationhelpacceleratetheoxidationreactionsthatareexpectedtooccur.Moistureintheairaddsanotherrealisticconditionthatencouragesoilbreakdownbyfacilitatingacidformation.Interpretationofresultsshouldbedonebycomparisonwithdatafromoilsofknownfieldperformance.Theacceleratedconditionslikelywillcauseoneormoreofthefollowingmeasurableeffects:masschangeandcorrodedappearanceofsomemetals;changeofviscosity;increaseinacidnumber;measurablereactionproductsintheformofsludge;andmasslossofoilduetoevaporation.Thistestmethodismostsuitableforoilscontainingoxidationandcorrosioninhibitors.Withoutsuchingredient(s),theseveretestconditionswillyieldratherdrasticchangestotheoil.1.1Thistestmethodcoversthetestingofhydraulicoils,aircraftturbineenginelubricants,andotherhighlyrefinedoilstodeterminetheirresistancetooxidationandcorrosiondegradationandtheirtendencytocorrodevariousmetals.Petroleumandsyntheticfluidsmaybeevaluatedusingmoistordryairwithorwithoutmetaltestspecimens.1.2Thistestmethodconsistsofastandardtestprocedure,analternativeProcedure1,andanalternativeProcedure2.Astherearevariationspossiblewiththistestmethod,itwillbeuptotheparticularspecificationtoestablishtheconditionsrequired.Inadditiontotemperature,thevariablestospecifyifotherthanthoseofthestandardprocedureoralternativeProcedure1or2are:testtime,airflowandhumidity,samplefrequency,testfluidquantity,andmetalspecimen(s).1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3.1Exception8212;Thevaluesinparenthesesinsomeofthefiguresareprovidedforinformationonlyforthoseusingoldequipmentbasedonnon-SIunits.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E30
【国际标准分类号】:75_100
【页数】:10P.;A4
【正文语种】:英语