Designation:D3342−90(Reapproved2017)StandardTestMethodforDispersionStabilityofNew(Unused)RollingOilDispersionsinWater1ThisstandardisissuedunderthefixeddesignationD3342;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversdeterminationofthedispersionstabilityofdispersionsofrollingoilsinwater.Itisapplicabletooilswhosewaterdispersionsarestableundermoderateagitation,butwhichshowatleastsomeseparationuponstandingquiescentfor1⁄2h,byrisingoftheoilparticles.1.2ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Forspecificwarningstatements,see6.2,A2.1,andA2.5.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1126TestMethodforHardnessinWaterD1293TestMethodsforpHofWater3.SummaryofTestMethod3.1Therollingoilisdispersedinastandardtestwater,inastandardcontainer,understandardconditionsoftime,agitation,andconcentration.Whentheagitationisstopped,theresultingdecreaseinoilconcentrationataspecifiedpointnearthebottomofthecontainerismeasuredatcertaintimeintervalsandplotted.4.SignificanceandUse4.1Eachsteelrollingmillandoperationisparticularastothedegreeofstabilityofdispersionrequiredtoeffectmaxi-mumefficiencyoflubricationandcooling.Thistestmethodisdesignedtodifferentiatebetweencoolantsforthisuse.Asim...
