挥发性有机酸 2244700方法手册

VolatileAcidsDOC316.53.01144EsterificationMethod1Method819627to2800mg/L(asaceticacid)ReagentSolutionScopeandapplication:Fordigestorsludges.1AdaptedfromTheAnalyst,87,949(1962).TestpreparationInstrument-specificinformationTable1showsalloftheinstrumentsthathavetheprogramforthistest.Thetablealsoshowssamplecellandorientationrequirementsforreagentadditiontests,suchaspowderpilloworbulkreagenttests.Tousethetable,selectaninstrument,thenreadacrosstofindtheapplicableinformationforthistest.Table1Instrument-specificinformationInstrumentSamplecellorientationSamplecellDR6000DR3800DR2800DR2700DR1900Thefilllineistotheright.2495402DR5000DR3900Thefilllineistowardtheuser.DR900Theorientationmarkistowardtheuser.2401906BeforestartingInstalltheinstrumentcapontheDR900cellholderbeforeZEROorREADispushed.ReviewtheSafetyDataSheets(MSDS/SDS)forthechemicalsthatareused.Usetherecommendedpersonalprotectiveequipment.Disposeofreactedsolutionsaccordingtolocal,stateandfederalregulations.RefertotheSafetyDataSheetsfordisposalinformationforunusedreagents.Refertotheenvironmental,healthandsafetystaffforyourfacilityand/orlocalregulatoryagenciesforfurtherdisposalinformation.ItemstocollectDescriptionQuantityCentrifuge1Centrifugetubesandcaps2Cylinder,10-mLgraduated1EthyleneGlycol3mLFerricChloride-SulfuricAcidSolution20mL1Itemstocollect(continued)DescriptionQuantityFunnelandfilterpapervariesHotPlate1HydroxylamineHydrochlorideSolution,100-g/L1mLPipetfiller1Pipet,2-mL1Pipet,ClassAvolumetric,0.50-mL11Pipet,ClassAvolumetric,10-mL1Samplecells(Forinformationaboutsamplecells,adaptersorlightshields,refertoInstrument-specificinformationonpage1.)2SodiumHydroxideStandardSolution,4.5N4mLSulfuricAcidStandardSolution,19.2N0.4mLWaterbathandrack1Water,deionized20.5mL1ATenSettePipetcanbeusedinplaceofindividualpipetsinthisprocedure.RefertoConsumablesandreplacementitemsonpage5fororderinformation.Samplecollectionandstorage•Collectsamplesincleanglassorplasticbottles.•Topreservesamplesforlateranalysis,keepthesamplesatorbelow6°C(43°F)f