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StandardTestMethodforAcidandBaseNumberbyColor-IndicatorTitrationTheAstmDPDFPDFTitrationChemistryItisapplicableforthedetermination ofacidsorbaseswhosedissociationconstantsinwaterarelargerthan9;extremelyweakacidsTAN1/6SIAnalytics-ApplicationreportTitrationDetermination ofAcidNumberbyColorIndicatorTitration(ASTMD)DescriptionAnalysisPlacethebeakerunderthestirrerassemblyandlowerittoimmersethephotometric electrodeandstirrerReagentsUsinganautomaticpipette,transfermLofNaphtholbenzeinindicatorsolutiontothebeakerThedeterminationdescribedinthis reportisbasedonthestandardASTMDInstrumentsDescriptionIftheindicatorcolorispinkorred,titratewithMKOHsolutiontothesameendpointasthat usedinthesampletitrationScopeThistestmethodcoversthedeterminationofacidicorbasicconstituents(Note1)inpetroleumproductsandlubricantssolubleor nearlysolubleinmixturesoftolueneandisopropylalcoholStandardizationofPotassiumHydroxideSolutionThedeterminationdescribedinthisreportisbased onthestandardASTMDInstruments.TitratorTLorhigherInterchangeableunitWAElectrodeOptiLine6ASTMDFreedownloadasPDFFile.pdf),Text File.txt)orreadonlineforfree.ASTM-DpdfFreedownloadasPDFFile.pdf),TextFile.txt)orreadonlineforfreeAstmD|PDFTitrationChemistry.Usingan automaticpipette,transfermLofASTMDREDLINEASTMDThisdocumentisnotanASTMstandardandisintendedonlytoprovidetheuserofanASTM standardanindicationofwhatchangesASTMDATISDocumentCenterIndicedeacidezExtractthesampletwicemorewithmLportionsofboilingwater, addingbothextractstothetitrationflaskIftheindicatorcolorisyellow-orange,titratewithMHCltothesamedepthandshapeofcolorobtainedinthetitrationof thesampleASTMDFreedownloadasPDFFilepdf),TextFiletxt)orreadonlineforfreesamplesizesperASTMD*UseaClassAglassgraduatedcylinder totransferexactlymLofTANSOLtothebeakerstandardbyASTMInternational,/01/ViewallThistestmethodwasadoptedasajointASTM-IPstandardin ASTMTestMethodDhasbeendevelopedasanalternativetothebasenumberportionofDForASTMDFreedownloadasPDFFile.pdf),TextFile.txt)orread onlineforfreeAddmLofmethylorangeindicatorsolutionTothecombinedextractsaddmLofmethylorangeindicatorsolutionand,ifthesolutionbecomespink orred,titratewithMKOHsolutionuntilthesolutionbecomesgoldenbrownincolorsamplesizesperASTMD*UseaClassAglassgraduatedcylinderto transferexactlymLofTANSOLtothebeaker