Designation:D2337−01(Reapproved2014)StandardTestMethodforFreeze-ThawStabilityofMulticolorLacquers1ThisstandardisissuedunderthefixeddesignationD2337;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationoftheextenttowhichmulticolorlacquersresistcoagulationandcoales-cencewhensubjectedtofreezingandsubsequentthawing.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D562TestMethodforConsistencyofPaintsMeasuringKrebsUnit(KU)ViscosityUsingaStormer-TypeViscom-eter3.SummaryofTestMethod3.1Specimensofmulticolorlacquersareplacedinacham-bermaintainedatatemperaturebetween−23and−26°C(−10and−15°F)andallowedtoremain24h.Thespecimensareremovedfromthechamberandallowedtoremainatroomtemperaturefor24htoreachthermalequilibrium.Afterthespecimensaremixedandtheviscosityadjusted,theyarethensprayedandallowedtodrybeforecomparingwiththecontrolstandardsprayedfromtheoriginalspecimen.4.SignificanceandUse4.1Waterbornecoatings,whensubjectedtocyclesoffreez-ingandthawing,canundergodetrimentalchangesinapplica-tionandperformancecharacteristics.Thistestmethodevalu-atestheabilityofmulticolorlacquerstoresistthesechanges.5.ApparatusandMaterials5.1Cabinet,Room,orEnclosedSpace,largeenoughtocontainthespecimenstobetestedandallowingatleast25mm(1in.)ofairspacebetweenthesidesofadjacentcans.Itshouldbecapableofbeingmaintainedatatemperaturebetween−23and−26°C(−10and−15°F).5.2StormerViscometer,withpaddle-typerotor.5.3SprayGun,press...
