ASTMDL03387m075952000325829m/+ls-G%Designation:D1033-874cniAMERICANSOCIETYFORTESTINGANDMATERIALS1916RaceSt.,Philadelphia,Pa.19103ReprintedfromtheAnnualBookofACTMStandards,CopyrightASTMIfnotlistedinthecurrentcombinedindex,willappearinlhenextedition.StandardMethodsofCHEMICALANALYSISOFCHROMATEDZINCCHLORIDE'ThisstanrdisissuedunderthefmeddesignationD1033;thenumberimmediatelyfoxowingthedesignationindicafestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(0indicatesaneditorialchangesincethelastrevisionorreapproval.1.scope1.1Thesemethodscoverthechemicalanaly-sisofchromatedzincchloride,eithergranulatedorincommercialconcentratedsolutions,foruseinthepreservativetreatmentofwood.1.2Theanalyticalproceduresappearinthefollowingorder:Zinc(calculatedasZnO)Hexavalentchromium(calculatedasSections6andI8and9Cl%)1.3Thisstandardmayinvolvehazardousma-terials,operations,andequipment.Thisstandarddoesno!purporttoaddressallofthesajëtyprob-lemsassociatedwithilsilse.Itistheresponsibil-ityoftheuserofthisstandardtoestablishappro-priatesaktyandhealthpracticesanddeterminetheapplicabilityofregtilalorylimitationspriortouse.2.ReferencedDocuments2.iASTMStandards:D1032SpecificationforChromatedZincD1193SpecificationforReagentWate92.2OtherStandard:AWPAA2StandardMethodsforAnalysisofWaterbornePreservativesandFire-Retar-dantFormulations43.SummaryofMethods3.1Zinc-AdilutedandchemicallytreatedsampleistitratedwithastandardsolutionofPotassiumFerrocyanideinthepresenceofanoxidation-reductionindicator(diphenylamine).ThezinciscalculatedasZnO.3.2Chromium-AdilutedandchemicallytreatedsampleisreactedwithanexcessofFer-rousAmmoniumSulfate.TheunreactedFerrousChioride'AmmoniumSulfateistitratedwithastandardsolutionofPotassiumDichromatetodeterminetheconsumedchromium.HexavalentchromiumiscalculatedasCrO3.4.SignificanceandUse4.1ChromatedZincChlorideforuseinthepreservativetreatmentofwoodmustconformwithSpecificationD1032.5.PurityofReagent...
