Designation:D1628–94(Reapproved2000)StandardTestMethodsforChemicalAnalysisofChromatedCopperArsenate1ThisstandardisissuedunderthefixeddesignationD1628;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thesetestmethodscoverthechemicalanalysisofsolidchromatedcopperarsenateandsolutionsofthismaterial.1.1.1TestMethodD38coversthesamplingofwoodpreservativespriortotesting.1.2Theanalyticalproceduresoccurinthefollowingorder:SectionsPentavalentArsenic(calculatedasAs2O5)7-9Copper(calculatedasCuO)10-13HexavalentChromium(calculatedasCrO3)14-161.3Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Specificprecau-tionarystatementsaregivenin8.2,12.1.2,andinaccordancewiththesafetyprecautionssectionofTestMethodD4278.2.ReferencedDocuments2.1ASTMStandards:D38TestMethodsforSamplingWoodPreservativesPriortoTesting2D1033MethodsofChemicalAnalysisofChromatedZincChloride3D1035TestMethodsforChemicalAnalysisofFluor-Chrome-Arsenate-Phenol2D1193SpecificationforReagentWater4D1326MethodsforChemicalAnalysisofAmmoniacalCopperArsenateandAmmoniacalCopperZincArsenate2D1625SpecificationforChromatedCopperArsenate2D1627MethodsforChemicalAnalysisofAcidCopperChromate2D4278TestMethodforWetAshingProcedureforPrepar-ingWoodSamplesforInorganicChemicalAnalysis23.SummaryofTestMethods3.1Add20mLoftartaricacidsolutiontoa250-mLErlenmeyerflask,thenadd2mLoftheACAconcentrate.Theresultingsolutionshouldbecomelightblue-green.Twentymillilitresofsodiumbicarbonatesolutionisthenaddedandthesolutionwillturnlightblue.Twomillilitresofthestarchindicatorisadded.Tothissolution,onedropofiodinesolutionfromaburetisadded.Ifthesolutionturnsada...
