ASTMD394593W0759530052842435T(mDesignation:D3945-93AMERICANSOCIETYFORTESllNGANDMATERIALS1916RaceStPhiladelphia,Pa19103ReprintedfromtheAnnualBookofASTMStandards.CopyrbhtIfnotlistedinthecurrentcombinedindex,willappearinthenextASTMeditionAnAmericanNatiiStandardStandardTestMethodsforShearStabilityofPolymer-ContainingFluidsUsingaDieselInjectorNozzle'ThisstandardisissuedunderthefixeddesignationD3945;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(c)indicatesaneditorialchangesincethelastrevisionorreapproval.NOTE-R~~~~UXSAandBofthismethodareintheprocessofbeingrevisedasseparateASTMTestMethodsbecausetestsofaseriesofpolymer-containingfluidsshowedthatthetwoproceduresoftengivedifferentresults.1.scope1.1Thesetestmethodsmeasurethepercentviscositylossat100°Cofpolymer-containingfluidswhenevaluatedbyeitheroftwodieselinjectorapparatusprocedures.ProcedureAusesEuropeanDieselInjectorTestEquipmentandProcedureBusesFuelInjectorShearStabilityTest(FISST)equipment.Theviscositylossreflectspolymerdegradationduetoshearatthenozzle.NOTE1-ASTMTestMethodD2603hasbeenusedforsimilarevaluationofthisproperty.Ithasmanyofthesamelimitationsasindicatedinthesignificancestatement.Nodetailedattempthasbeenundertakentocorrelatetheresultsbythesonicandthedieselinjectormethods.EquipmentandreplacementpartsarenolongeravailableforTestMethodD2603.NOTE2-ProcedureAofthismethodusestestapparatusasdefinedinCECG14-A-79,IP294/76andDIN51382.TheoperationalprocedureisMerentonfourspecificpoints.ProcedureAevaluateshydraulic-typefluidsat30cycles,withviscositiesmeasuredat100°C.Resultsarereportedforsingledeterminations.Noequipmentseveritycorrectionfactorisusedtoadjustresults.1.2Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregul...
