Designation:D3504–96(Reapproved2003)e1StandardSpecificationforMaleicAnhydride1ThisstandardisissuedunderthefixeddesignationD3504;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.e1NOTE—EditorialchangesweremadetoSections1and5.1.Scope1.1Thisspecificationcoversmaleicanhydride.1.2Thefollowingappliestoallspecifiedlimitsinthisspecification:forpurposesofdeterminingconformancewiththisspecification,anobservedvalueoracalculatedvalueshallberoundedoff“tothenearestunit”inthelastright-handdigitusedinexpressingthespecificationlimit,inaccordancewiththerounding-offmethodofPracticeE29.1.3ConsultcurrentOSHAregulationsandsupplier’sMate-rialSafetyDataSheets,andlocalregulationsforallmaterialsusedinthisspecification.2.ReferencedDocuments2.1ASTMStandards:D1493TestMethodforSolidificationPointofIndustrialOrganicChemicals2D3366TestMethodforColorofMaleicAnhydrideandPhthalicAnhydrideintheMoltenStateandAfterHeating(Platinum-CobaltScale)2D3438PracticeforSamplingandHandlingNaphthalene,MaleicAnhydride,andPhthalicAnhydride2E29PracticeforUsingSignificantDigitsinTestDatatoDetermineConformancewithSpecifications32.2OtherDocument:OSHARegulations,29CFR,paragraphs1910.1000and1910.120043.Properties3.1Maleicanhydrideshallconformtothefollowingre-quirements:PropertySpecificationASTMTestMethodSolidificationpoint,min,°C52.5D1493Moltencolor,max25D3366Moltencolorafterheating,max40D33664.Sampling4.1ThismaterialshallbesampledinaccordancewithPracticeD3438.5.Keywords5.1maleicanhydride;platinum-cobaltcolor;solidificationpointASTMInternationaltakesnopositionrespectingthevalidityofanypatentrightsassertedinconnectionwithanyitemmentionedinthisstandard.Usersofthisstandardareexpresslyadvisedthatdeterminationofthevalidityofanysuchpatentrights,andtheriskofinfringementofsuchrights,areentirelytheirownresponsibility.Th...
