Designation:D4287−00(Reapproved2019)StandardTestMethodforHigh-ShearViscosityUsingaCone/PlateViscometer1ThisstandardisissuedunderthefixeddesignationD4287;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.ThisstandardhasbeenapprovedforusebyagenciesoftheU.S.DepartmentofDefense.1.Scope1.1Thistestmethodcoversthedeterminationoftheviscos-ityofpaints,varnishes,andrelatedproductsatarateofshearof12000s−1.1.2Paintsandvarnishesthatdryveryrapidlymaynotgivereproducibleresultswiththistestmethod.Measurementsmadeatelevatedtemperaturesmayalsogivepoorprecisionduetolossofvolatilesandtodrying.1.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D1210TestMethodforFinenessofDispersionofPigment-VehicleSystemsbyHegman-TypeGageD3925PracticeforSamplingLiquidPaintsandRelatedPigmentedCoatingsD4958TestMethodforComparisonoftheBrushDragofLatexPaints3.SummaryofTestMethod3.1Thematerialtobetestedisplacedbetweentheconeandplateofacone/plateviscometer,thensubjectedtoahighshearratewhiletheviscosityisdetermined.4.SignificanceandUse4.1Theviscosityvalueobtainedbythistestmethodgivesinformationabouttheflowpropertiesofthematerialunderhigh-shearconditionssimilartothoseencounteredduri...
