Designation:D3256−86(Reapproved2020)StandardTestMethodsforChemicalAnalysisofPhthalocyanineBlueandGreenPigments1ThisstandardisissuedunderthefixeddesignationD3256;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverproceduresforthequalitativechemicalanalysisofpigmentsknowncommerciallyascopperphthalocyanineblueandgreen.1.2Theproceduresappearinthefollowingorder:SectionIdentification5MoistureandOtherVolatileMatter6DetectionofBasicDyeDerivatives7DetectionofOtherOrganicColoringMatter8DetectionofUltramarineBlue9DetectionofIronBlueorChromeGreen101.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafety,health,andenvironmentalpracticesanddeter-minetheapplicabilityofregulatorylimitationspriortouse.1.5Thisinternationalstandardwasdevelopedinaccor-dancewithinternationallyrecognizedprinciplesonstandard-izationestablishedintheDecisiononPrinciplesfortheDevelopmentofInternationalStandards,GuidesandRecom-mendationsissuedbytheWorldTradeOrganizationTechnicalBarrierstoTrade(TBT)Committee.2.ReferencedDocuments2.1ASTMStandards:2D280TestMethodsforHygroscopicMoisture(andOtherMatterVolatileUndertheTestConditions)inPigmentsD1193SpecificationforReagentWater3.SignificanceandUse3.1Thesetestmethodsaresuitablefordeterminingifimpuritiesarepresentandestablishingthattherequiredpig-mentsarepresent.Thesetestmethodsmaybeusedformanufacturingandpurchasingqualitycontrol.4.Reagents4.1PurityofReagents—Reagentgradechemicalsshallbeusedinalltests.Unlessotherwiseindicated,itisintendedthatallreagentsshallconformtothespecificationsoftheCommit-teeonAnalyticalReagentsoftheAmer...
