Designation:D4212−10(Reapproved2014)StandardTestMethodforViscositybyDip-TypeViscosityCups1ThisstandardisissuedunderthefixeddesignationD4212;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofviscosityofpaints,varnishes,lacquers,inks,andrelatedliquidmaterialsbydip-typeviscositycups.Thistestmethodisrecommendedforviscositycontrolworkwithinoneplantorlaboratoryandshouldbeusedtocheckcompliancewithspecificationsonlywhensufficientcontrolshavebeeninstitutedtoensuread-equatecomparabilityofresults.1.2ViscositycupsaredesignedfortestingofNewtonianandnear-Newtonianliquids.Ifthetestmaterialisnon-Newtonian,forexample,shear-thinningorthixotropic,anothermethod,suchasTestMethodsD2196,shouldbeused.Undercontrolledconditions,comparisonsoftheviscosityofnon-newtonianmaterialsmaybehelpful,butviscositydetermina-tionmethodsusingcontrolledshearrateorshearstressarepreferred.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D1200TestMethodforViscositybyFordViscosityCupD2196TestMethodsforRheologicalPropertiesofNon-NewtonianMaterialsbyRotational(Brookfieldtype)ViscometerD4287TestMethodforHigh-ShearViscosityUsingaCone/PlateViscometerE1SpecificationforASTMLiquid-in-GlassThermometers3.Terminology3.1Definitions:3.1.1near-Newtonianliquid,n—aliquidinwhichthevaria-tionofviscositywithshearrateissmallandtheeffectonviscosityofmechanicaldisturbancessuchasstirringisnegli-gible.3.1.2Newtonianliquid,n—aliquidinwhichtheviscosit...
