Designation:D283−13StandardTestMethodsforChemicalAnalysisofCuprousOxideandCopperPigments1ThisstandardisissuedunderthefixeddesignationD283;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverproceduresforthechemicalanalysisofcuprousoxideandcopperpigments.1.2Theanalyticalproceduresappearinthefollowingorder:SectionsTotalCopper7TotalReducingPowerasCuprousOxide8and9MetallicCopper10and11CuprousOxide12CupricOxide13MetalsOtherthanCopper14–16ChloridesandSulfates17and18Acetone-SolubleMatter19Water20Stability21CoarseParticles22CoarseParticlesInsolubleinNitricAcid231.3ThevaluesstatedinSIunitsaretoberegardedasstandard.Nootherunitsofmeasurementareincludedinthisstandard.1.4Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.2.ReferencedDocuments2.1ASTMStandards:2D185TestMethodsforCoarseParticlesinPigmentsD1193SpecificationforReagentWaterD1208TestMethodsforCommonPropertiesofCertainPigments3.SignificanceandUse3.1Thiscollectionoftestmethodsisusedbypigmentproducersandpaintmanufacturersforprocesscontrol,productacceptance,andresearchanddevelopment.4.TreatmentofSample4.1Grinddrypigments,iflumpyornotfinelyground,toafinepowderandthoroughlymix(Note1).Largesamplesmaybethoroughlymixedandarepresentativeportiontakenandpowderediflumpyornotfinelyground.Inallcasesthoroughlymixthesamplebeforetakingportionsforanalysis.Preserveallsamplesindry,dark,airtightandcompletelyfilledbottlesorcontainerstopreventoxidation.Somecommercialcopperoxidesappeartosegregateoroxidizerathereasily.Therefore,thethoroughmixingofthesampletoensurehomogeneityandtherapidhandlingofthesample,whenexposedtolighta...
