Designation:D7394−13StandardPracticeforRheologicalCharacterizationofArchitecturalCoatingsusingThreeRotationalBenchViscometers1ThisstandardisissuedunderthefixeddesignationD7394;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thispracticecoversapopularindustryprotocolfortherheologicalcharacterizationofwaterbornearchitecturalcoat-ingsusingthreecommonlyusedrotationalbenchviscometers.Eachviscometeroperatesinadifferentshearrateregimefordeterminationofcoatingviscosityatlowshearrate,midshearrate,andathighshearraterespectivelyasdefinedherein.Generalguidelinesareprovidedforpredictingsomecoatingperformancepropertiesfromtheviscositymeasurementsmade.Withappropriatecorrelationsandsubsequentmodifica-tionoftheperformanceguidelines,thispracticehaspotentialforcharacterizationofothertypesofaqueousandnon-aqueouscoatings.1.2Thevaluesincommonviscosityunits(KrebsUnits,KUandPoise,P)aretoberegardedasstandard.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D562TestMethodforConsistencyofPaintsMeasuringKrebsUnit(KU)ViscosityUsingaStormer-TypeViscom-eterD869TestMethodforEvaluatingDegreeofSettlingofPaintD1005TestMethodforMeasurementofDry-FilmThick-nessofOrganicCoatingsUsingMicrometersD1200TestMethodforViscositybyFordViscosityCupD2196TestMethodsforRheologicalPropertiesofNon-NewtonianMaterialsbyRotational(Brookfieldtype)ViscometerD2805TestMethodforHidingPowerofPaintsbyReflec-tometryD4040TestMethodforRheologicalPropertiesofPastePrintingandVehiclesbytheFalling-RodViscometerD4062TestMethodforLevelingofPaintsbyDraw-DownMethodD4287TestMethodforHigh-Shear...
