Designation:D4040−10(Reapproved2019)StandardTestMethodforRheologicalPropertiesofPastePrintingandVehiclesbytheFalling-RodViscometer1ThisstandardisissuedunderthefixeddesignationD4040;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoverstheprocedurefordeterminingthefalling-rodviscosityanddegreeofnon-Newtonianbehav-iorofprintinginks,vehicles,andsimilarliquidsthatareessentiallynonvolatileandunreactiveunderordinaryroomconditions.1.2Forprintinginks,whicharetypicallynon-Newtonian,thistestmethodisapplicableintheapparentviscosityrangefromabout10to300Patashearrateof2500s−1.ForNewtonianliquids,theapplicableviscosityrangeisabout10to1000P(1P=0.1Pa·s).1.3Thistestmethodusesafalling-rodviscometerinwhichshearconditionsarealteredbymanuallyaddingweighttotherod.AfullyautomaticinstrumentisdescribedinTestMethodD6606.1.4Thistestmethod,asdoesTestMethodD6606,basescalculationsonthepowerlawmodelofviscosity.ISO12644coversnotonlythepowerlawbutalsotheCassonandBinghammodels.1.5ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.6Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.Forspecifichazardstatements,seeSection8.1.7Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D445TestMethodforKinematicViscosityofTransparentandOpaqueLiquids(andCalculatio...
