Designation:D4242−07(Reapproved2013)StandardTestMethodforInclinedPlateFlowforThermosettingCoatingPowders1ThisstandardisissuedunderthefixeddesignationD4242;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope*1.1Thistestmethodspecifiesamethodfordeterminingtheflowcharacteristicsofafusedthermosettingcoatingpowderdownaplaneinclinedatasetangletothehorizontal.Thetestgivesanindicationofthedegreeofmeltflowthatmayoccurduringthecuringofthecoatingpowder.Thischaracteristiccontributestothecoherenceofthecoating,toitssurfaceappearanceandtothedegreeofcoverageoversharpedges(seeTestMethodD2967),however,itshouldnotbeusedasthesolefactorforjudgment.Thetestactsasausefulmethodforcheckingforbatchtobatchvariationinthebehaviorofagivencoatingpowder.Correlationbetweentheresultsfromcoatingpowdersofdifferingcompositionisnottobeexpected.Thismethodisunlikelytoyieldmeaningfulresultswithcoatingpowderswhichhavegeltimesoflessthanoneminuteatthetesttemperature(seeTestMethodD4217).Ovendrafts,angleofinclinationandpelletvariationssignificantlyaffectresultsmakinginter-labreproducibilitysomewhatdifficulttocorre-late.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesandtodeterminetheapplicabilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D792TestMethodsforDensityandSpecificGravity(Rela-tiveDensity)ofPlasticsbyDisplacementD2967TestMethodforCornerCoverageofPowderCoat-ingsD4217TestMethodforGelTimeofThermosettingCoatingPowderD5965TestMethodsforSpecificGravityofCoatingPow-ders2.2OtherDocuments:ISO8130-2Coatingpowders—Part2:Determinationofdens...
