Designation:D5724−06(Reapproved2010)StandardSpecificationforGouachePaints1ThisstandardisissuedunderthefixeddesignationD5724;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisspecificationestablishesrequirementsforcomposition,physicalproperties,performance,andlabelingofgouachepaints.1.2Thisspecificationcoverspigments,vehicles,andaddi-tives.Requirementsareincludedforpigmentidentification,lightfastness,andconsistency.1.3Table1listssomepigmentsmeetingthelightfastnessrequirementsinthisspecification.Inordertoidentifyotherpigmentsthatmeettheserequirements,instructionsaregivenfortestspecimenpreparation.Testmethodsfordeterminingrelativelightfastnessarereferenced.1.4ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.2.ReferencedDocuments2.1ASTMStandards:2D185TestMethodsforCoarseParticlesinPigmentsD279TestMethodsforBleedingofPigmentsD476ClassificationforDryPigmentaryTitaniumDioxideProductsD823PracticesforProducingFilmsofUniformThicknessofPaint,Varnish,andRelatedProductsonTestPanelsD1210TestMethodforFinenessofDispersionofPigment-VehicleSystemsbyHegman-TypeGageD1535PracticeforSpecifyingColorbytheMunsellSystemD4236PracticeforLabelingArtMaterialsforChronicHealthHazardsD4303TestMethodsforLightfastnessofColorantsUsedinArtists’MaterialsE284TerminologyofAppearance2.2OtherDocuments:ColourIndex33.Terminology3.1Definitions:3.1.1colourindexname,n—consistsofthecategory(typeofdyeorpigment),generalhue,andanassignednumbergiventoacolorantintheColourIndex3asaninternationalidentifi-cationsystem.3.1.1.1Discussion—Forexample,theColourIndexNameofonephthalocyaninebluepigmentisPigmentBlue15(PB15).3.1.2colourindexnumber,n—afive-digitnumbergivenintheColourIndexthatdescribesthechemicalconstitutionofacolorant.3.1.2.1Discussion—F...
