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1、METHOD1311TOXICITYCHARACTERISTICLEACHINGPROCEDURE1.0SCOPEANDAPPLICATION1.1TheTCLPisdesignedtodeterminethemobilityofbothorganicandinorganicanalytespresentinliquid,solid,andmultiphasicwastes.1.2Ifatotalanalysisofthewastedemonstratesthatindividualanalytesarenotpresent
2、inthewaste,orthattheyarepresentbutatsuchlowconcentrationsthattheappropriateregulatorylevelscouldnotpossiblybeexceeded,theTCLPneednotberun.1.3IfananalysisofanyoneoftheliquidfractionsoftheTCLPextractindicatesthataregulatedcompoundispresentatsuchhighconcentra-tionstha
3、t,evenafteraccountingfordilutionfromtheotherfractionsoftheextract,theconcentrationwouldbeabovetheregulatorylevelforthatcompound,thenthewasteishazardousanditisnotnecessarytoanalyzetheremainingfractionsoftheextract.1.4Ifananalysisofextractobtainedusingabottleextracto
4、rshowsthattheconcentrationofanyregulatedvolatileanalyteexceedstheregulatorylevelforthatcompound,thenthewasteishazardousandextractionusingtheZHEisnotnecessary.However,extractfromabottleextractorcannotbeusedtodemonstratethattheconcentrationofvolatilecompoundsisbelowt
5、heregulatorylevel.2.0SUMMARYOFMETHOD2.1Forliquidwastes(i.e.,thosecontaininglessthan0.5%drysolidmaterial),thewaste,afterfiltrationthrougha0.6to0.8µmglassfiberfilter,isdefinedastheTCLPextract.2.2Forwastescontaininggreaterthanorequalto0.5%solids,theliquid,ifany,issepa
6、ratedfromthesolidphaseandstoredforlateranalysis;theparticlesizeofthesolidphaseisreduced,ifnecessary.Thesolidphaseisextractedwithanamountofextractionfluidequalto20timestheweightofthesolidphase.Theextractionfluidemployedisafunctionofthealkalinityofthesolidphaseofthew
7、aste.Aspecialextractorvesselisusedwhentestingforvolatileanalytes(seeTable1foralistofvolatilecompounds).Followingextraction,theliquidextractisseparatedfromthesolidphasebyfiltrationthrougha0.6to0.8µmglassfiberfilter.2.3Ifcompatible(i.e.,multiplephaseswillnotformoncom
8、bination),theinitialliquidphaseofthewasteisaddedtotheliquidextract,andtheseareanalyzedtogether.Ifincompatible,theliquidsareanalyzedseparatelyandt
