ASTM D7155-2006 评估涡轮机润滑油混合物互溶性的标准实施规程

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【英文标准名称】:StandardPracticeforEvaluatingCompatibilityofMixturesofTurbineLubricatingOils
【原文标准名称】:评估涡轮机润滑油混合物互溶性的标准实施规程
【标准号】:ASTMD7155-2006
【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.C0
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:外观;容量;兼容性;条件;评估;失败;等级;冲击;负荷能力;润滑剂;润滑油;机械的;混合物;油;烘炉;氧化;性能;压力;防护;特性;安全;服务;剪切稳定性;国际单位制;稳定性;试验油;测试;涡轮机油;VG;磨损
【英文主题词】:compatibility;incompatibility;lubricantmixtures;lubricatingoil;mixtures
【摘要】:Thecompatibilityofoilscanbeimportantforusersofoil-lubricatedequipment.Itiswellknownthatthemixingoftwooilscanproduceasubstancemarkedlyinferiortoeitherofitsconstituentmaterials.Oneormoreofthefollowingcanoccur:5.1.1Amixtureofincompatibleoilsmostoftenformsaprecipitate.5.1.2Theprecipitatewillformunwanteddepositsinthelubricationsystem,plugfiltersandoilpassageways.5.1.3Sucheventscanleadtocatastrophicequipmentfailures.Becauseofsuchoccurrences,lubricantsuppliersrecommendevaluatingcompatibilityoflubricatingoilofdifferentformulationsandsourcespriortomixing.Equipmentusersmostoftendonothavetheresourcestoevaluateoilcompatibilityandmustrelyontheirsuppliers.Mixingofoilsisahighlyimprudentpracticewithoutfirstdeterminingthecompatibility.Althoughnewturbineoilsmaybecompatible,in-serviceoilofthesametypemaybedegradedorcontaminatedtosuchanextentthatthenewoiladdedmaynotbecompatiblewiththesystemoil.In-serviceoilcompatibilitywithnewoiladditionsshouldbeevaluatedonacasebycasebasis.Theoxidationresistanceofdifferentoilsofthesametypecanvarywidely,andcompatibilitydoesnotimplyequivalentperformance.1.1ThispracticecoversthecompatibilityofmixturesofturbinelubricatingoilsofthesameISOVGgradeandtypeasdefinedbySpecificationD4304.TheTier1methodcomparesthevisualappearancesofspecificmixtureswiththoseoftheneatoilsafterstorageatspecifiedconditions.1.2Ifthecurrentin-serviceoiliscausingproblemsorifcircumstancesindicatetheneedforadditionaltesting,aTier2methodcomparesselectedperformancepropertiesofthemixtureanditsconstituentoils.1.3TheTier1andTier2methodscanbeusedtoevaluatenew(unused)lubricantcompatibilityortheeffectsofaddingnew(unused)lubricanttoin-servicelubricantinthesystem.1.4Thismethoddoesnotevaluatethewearpreventioncharacteristics,loadcarryingcapacity,orthemechanicalshearstabilityoflubricantsmixtureswhileinservice.Ifanti-wear(AW),extremepressure(EP),orshearstabilityaretobeevaluated,furthertestingoftheseparametersmayberequired.1.4.1Tier1Mixturesofthetwoconstituentoilstobeevaluatedarepreparedatspecifiedproportions,storedinanovenat65176;Cfor168h,andthenevaluatedforchangesinphysicalappearance.1.4.2Tier1-Mixturesofthetwoconstituentoilstobeevaluatedarepreparedatspecifiedproportions,storedinanovenat65176;Cfor168h,andthenevaluatedforchangesphysicalappearanceandparametersdetailedin7.3.1.5Mixturesofthetwoconstituentoilsareevaluatedinaprimarytestingprotocolusingthefollowingstandards:1.5.1Forcompatiblemixtures,asupplemental(nonmandatory)testingschemeissuggestedwhencircumstancesindicatetheneedforadditionaltestingthebeyondTier2primaryrecommendedtests.Note0Theoxidationstabilitytestmethodshouldbeselectedbasedontheproducttypeandinagreementwiththelubricantsupplier(seeforoptions).Unlikeothertestsdescribedinthispractice,theimpactonoxidationstabilitymaynotbeeasilyinterpretedwithapass/failrating.Theuserisencouragedtocontactthelubricantsupplierforassistanceintheevaluationofthedata.1.6Sequentialorconcurrenttestingiscontinueduntilthetestrequestororuserissatisfiedthattheintentofthispracticehasbeenmet.IfanymixturefailstheTier1visualappearancemethodoranyoftheTier2primarytests,whenrequested,theoilsareincompatible.IfallmixturespasstheTier1orTier2tests,theoilsareconsideredcompatiblebythosemethods.......
【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】:


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MIL-F-5509D (NOTICE 2), MILITARY SPECIFICATION: FITTINGS, FLARED TUBE, FLUID CONNECTION (30 SEP 1998) [SEE NOTICE 2 FOR ADDITIONAL SUPERSEDING INFORMATION]., MIL-F-5509D(4), dated 30 November 1987; and MIL-F-5509D, Supplement 1, dated16 June 1978, are hereby canceled. Future acquisitions for these products should refer to thefollowing standard(s) as applicable to the specific fittings. Each replacement standard citessuperseding information for known fittings that have MIL-F-5509 designated as a procurementspecification. The attached cross-reference listing is provided to indicate which AN or MS fromMIL-F-5509D, Supplement 1, applies to the superseding procurement specifications.