ASTM D5621-2007 液压流体的声波剪切稳定性的标准试验方法

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【英文标准名称】:StandardTestMethodforSonicShearStabilityofHydraulicFluids
【原文标准名称】:液压流体的声波剪切稳定性的标准试验方法
【标准号】:ASTMD5621-2007
【标准状态】:现行
【国别】:
【发布日期】:2007
【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】:(TestMethod)
【标准水平】:()
【中文主题词】:液压液;剪切试验;粘度
【英文主题词】:hydraulicfluid;shearstability;sonicsheartest;viscositystable;Hydraulicfluids/oils;Shearstability;Sheartesting--petroleumproducts;Sonicsheartest;Viscosity--petroleumproducts;Viscositystable
【摘要】:ThistestmethodwasdevelopedusingTestMethodD2603x2013;91.Thistestmethodpermitstheevaluationofshearstabilitywithminimuminterferencefromthermalandoxidativefactorsthatmaybepresentinsomeapplications.Ithasbeenfoundapplicabletofluidscontainingbothreadilyshearedandshear-resistantpolymers.Correlationwithperformanceinthecaseofhydraulicapplicationshasbeenestablished.1.1Thistestmethodcoverstheevaluationoftheshearstabilityofhydraulicfluidsintermsofthefinalviscositythatresultsfromirradiatingasampleofthehydraulicfluidinasonicoscillator.1.2Evidencehasbeenpresentedthatagoodcorrelationexistsbetweenthesheardegradationthatresultsfromsonicoscillationandthatobtainedinavanepumptestprocedure.1.3Thistestmethodusesmillimetressquaredpersecond(mm2/s),anSIunit,astheunitofviscosity.Forinformation,theequivalentunit,cSt,isshowninparentheses.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:E39
【国际标准分类号】:75_120
【页数】:3P.;A4
【正文语种】: