ASTM D6022-2006 永久剪切稳定性指数计算的标准实施规程

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【英文标准名称】:StandardPracticeforCalculationofPermanentShearStabilityIndex
【原文标准名称】:永久剪切稳定性指数计算的标准实施规程
【标准号】:ASTMD6022-2006
【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】:D02.07
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:表观密度;计算;光密度分析;光密度分析法;密度测量;目录;质量(物质);测量;体积测量;永久的;剪切稳定性;试验;容量分析
【英文主题词】:permanentshearstabilityindex;shear;shearstabilityindex;viscosityloss
【摘要】:PermanentShearStabilityIndex(PSSI)isameasureofthelossofviscosity,duetoshearing,contributedbyaspecifiedadditive.Note28212;Forexample,aPSSIof50meanstheadditivewilllose50%oftheviscosityitcontributestothefinishedoil.Theselectionofappropriatebasefluidsandadditiveconcentrationstobeusedintestoilsislefttoindividualoperatorsorcompanies.Thesechoiceswilldependontheintendedapplicationfortheadditive.Note38212;PSSImaydependmorestronglyonbasefluid,additiveconcentration,additivechemistry,andthepresenceofotheradditivesforbasefluidsofunusualcomposition(forexample,esters)orifadditivesoutsidethecommonrangeofchemistriesandconcentrationsareused.Cautionshouldbeexercisedwheninterpretingresultsfromdifferentsources.1.1ThispracticespecifiestheprocedureforthecalculationofPermanentShearStabilityIndex(PSSI)ofanadditiveusingviscositiesbeforeandafterashearingprocedure.1.2PSSIiscalculatedforasingleblendcomponentandcanthenbeusedtoestimatetheeffectsofthatcomponentonfinishedlubricantblends.1.3Thispracticeisapplicabletomanyproductsandmayusedatafrommanydifferenttestmethods.Thecalculationispresentedinitsmostgeneralforminordernottorestrictitsuse.
【中国标准分类号】:J04
【国际标准分类号】:17_060
【页数】:4P.;A4
【正文语种】: