【英文标准名称】:StandardTestMethodforShearStabilityofPolymerContainingFluidsUsingaEuropeanDieselInjectorApparatusat30and90Cycles
【原文标准名称】:利用欧洲柴油喷射器装置在30和90周期中测试含流体聚合物的剪切稳定性用标准试验方法
【标准号】:ASTMD7109-2007
【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】:器具;圈;柴油机;喷射器;高聚物;剪切稳定性;测试
【英文主题词】:dieselinjectorapparatus;mechanicalshearstability;polymercontainingfluid;viscosityloss;Europeandieselinjectormethod;Polymer-containingfluids;Shearstability;Viscosityloss
【摘要】:Thistestmethodevaluatesthepercentviscositylossoffluidsresultingfromphysicaldegradationinthehighshearnozzledevice.Thermaloroxidativeeffectsareminimized.Thistestmethodmaybeusedforqualitycontrolpurposesbymanufacturersofpolymericlubricantadditivesandtheircustomers.Thistestmethodisnotintendedtopredictviscositylossinfieldserviceindifferentfieldequipmentunderwidelyvaryingoperatingconditions,whichmaycauselubricantviscositytochangeduetothermalandoxidativechanges,aswellasbythemechanicalshearingofpolymer.However,whenthefieldserviceconditions,primarilyorexclusively,resultinthedegradationofpolymerbymechanicalshearing,theremaybeacorrelationbetweentheresultsfromthistestmethodandresultsfromthefield.1.1Thistestmethodcoverstheevaluationoftheshearstabilityofpolymer-containingfluids.Thetestmethodmeasurestheviscosityloss,inmm2/sandpercent,at100x00B0;Cofpolymer-containingfluidswhenevaluatedbyadieselinjectorapparatusprocedurethatusesEuropeandieselinjectortestequipment.Theviscositylossreflectspolymerdegradationduetoshearatthenozzle.Viscositylossisevaluatedafterboth30and90cyclesofshearing.Note18212;Thistestmethodevaluatestheshearstabilityofoilsafterboth30and90cyclesofshearing.Formostoils,thereisacorrelationbetweenresultsafter30cyclesandresultsafter90cyclesofshearing,butthisisnotuniversal.Note28212;TestMethodD6278usesessentiallythesameprocedurewith30cyclesonlyinsteadofboth30and90cycles.Thecorrelationbetweenresultsfromthistestmethodat30cyclesandresultsfromTestMethodD6278hasnotbeenestablished.Note38212;TestMethodD2603hasbeenusedforsimilarevaluationofshearstability;limitationsareasindicatedinthesignificancestatement.Nodetailedattempthasbeenundertakentocorrelatetheresultsofthistestmethodwiththoseofthesonicsheartestmethod.Note48212;ThistestmethodusestestapparatusasdefinedinCECL-14-A-93.ThistestmethoddiffersfromCEC-L-14-A-93intheperiodoftimerequiredforcalibration.Note58212;TestMethodD5275alsoshearsoilsinadieselinjectorapparatusbutmaygivedifferentresults.Note68212;ThistestmethodhasdifferentcalibrationandoperationalrequirementsthanwithdrawnTestMethodD3945.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.SpecificwarningstatementsaregiveninSection8.
【中国标准分类号】:E31
【国际标准分类号】:17_060
【页数】:8P.;A4
【正文语种】: