Designation:D2441–95StandardTestMethodforHydrolyzableChlorineCompoundsinChlorinatedAromaticHydrocarbons(Askarels)byRefluxing1ThisstandardisissuedunderthefixeddesignationD2441;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(e)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thistestmethodcoversthedeterminationofhydrolyz-ablechlorinecompoundsinchlorinatedaromatichydrocarbons(askarels).1.2Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappro-priatesafetyandhealthpracticesanddeterminetheapplica-bilityofregulatorylimitationspriortouse.Foraspecifichazardstatement,seeSection8.1.3ThevaluesstatedinSIunitsaretoberegardedasthestandard.2.ReferencedDocuments2.1ASTMStandards:D1193SpecificationforReagentWater2,3D1820TestMethodforHydrolyzableChlorineCom-poundsinChlorinatedAromaticHydrocarbons(Askarels)43.SummaryofTestMethod3.1Thistestmethodusesaquantitativepotentiometrictitrationusingsilvernitrateinanessentiallynonaqueousmediumtodeterminechlorideions.Theseareobtainedaftermethanolicsodiumhydroxidehydrolysisofunstablechlorinecompoundsinchlorinatedaromatichydrocarbonsoftheaskareldielectricclass.4.SignificanceandUse4.1Themeasuredchlorideion,reportedaspartspermillionintheaskareltestspecimen,isindicativeoftherelativestabilityoftheaskarelunderprescribedconditionsoftest.4.2RefluxingwithmethanolicsodiumhydroxideoffersthedetectionofcertainchlorineadditioncompoundsthatcouldbepresentasimpuritiesanddonotrespondfullytohydrolysisatthelowertemperatureusedinTestMethodD1820.4.3Manyaskarelscontainpolychlorinatedbiphenyls(PCBs).ManufactureandsaleofPCBshasbeenprohibitedbyFederalregulationintheUnitedStatessince1978.TheconditionsforcontinueduseandthehandlinganddisposalofPCBsarealsoregulated.Usersofthisandothermethodsformeasuringthepropertiesofask...
