Designation:D718−86(Reapproved2020)StandardTestMethodsforAnalysisofAluminumSilicatePigment1ThisstandardisissuedunderthefixeddesignationD718;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscovertheanalysisofaluminumsilicatepigment.1.2ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thevaluesgiveninparenthesesareforinformationonly.1.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.4Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D234SpecificationforRawLinseedOil(Withdrawn2007)3D280TestMethodsforHygroscopicMoisture(andOtherMatterVolatileUndertheTestConditions)inPigmentsD717TestMethodsforAnalysisofMagnesiumSilicatePigmentD1193SpecificationforReagentWaterD1208TestMethodsforCommonPropertiesofCertainPigmentsD2448TestMethodforWater-SolubleSaltsinPigmentsbyMeasuringtheSpecificResistanceoftheLeachateofthePigmentE11SpecificationforWovenWireTestSieveClothandTestSieves3.SignificanceandUse3.1ThesetestmethodsmaybeusedtoconfirmthestatedaluminumoxideandSiO2contentofaluminumsilicateforqualitycontrol.4.Apparatus4.1PlatinumCrucible.4.2Electricfurnace(orgasburner),capableof1050to1100°C.4.3Volumetricflask,100and250mL.4.4Colorimeter,withtransmissionrangefrom400to550nm.4.5HighSilicaCrucible.5.PurityofReagents5.1Reagentgradechemicalsshallbeusedinalltests.Unlessotherwiseindicated,...
