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REFERENCENUMBERISO113372010EISO2010INTERNATIONALSTANDARDISO11337SECONDEDITION20101215PLASTICSPOLYAMIDESDETERMINATIONOFCAPROLACTAMANDLAUROLACTAMBYGASCHROMATOGRAPHYPLASTIQUESPOLYAMIDESDTERMINATIONDUCAPROLACTAMEETDULAUROLACTAMEPARCHROMATOGRAPHIEENPHASEGAZEUSECOPYRIGHTINTERNATIONALORGANIZATIONFORSTANDARDIZATIONPROVIDEDBYIHSUNDERLICENSEWITHISONOTFORRESALENOREPRODUCTIONORNETWORKINGPERMITTEDWITHOUTLICENSEFROMIHS,ISO113372010EPDFDISCLAIMERTHISPDFFILEMAYCONTAINEMBEDDEDTYPEFACESINACCORDANCEWITHADOBESLICENSINGPOLICY,THISFILEMAYBEPRINTEDORVIEWEDBUTSHALLNOTBEEDITEDUNLESSTHETYPEFACESWHICHAREEMBEDDEDARELICENSEDTOANDINSTALLEDONTHECOMPUTERPERFORMINGTHEEDITINGINDOWNLOADINGTHISFILE,PARTIESACCEPTTHEREINTHERESPONSIBILITYOFNOTINFRINGINGADOBESLICENSINGPOLICYTHEISOCENTRALSECRETARIATACCEPTSNOLIABILITYINTHISAREAADOBEISATRADEMARKOFADOBESYSTEMSINCORPORATEDDETAILSOFTHESOFTWAREPRODUCTSUSEDTOCREATETHISPDFFILECANBEFOUNDINTHEGENERALINFORELATIVETOTHEFILETHEPDFCREATIONPARAMETERSWEREOPTIMIZEDFORPRINTINGEVERYCAREHASBEENTAKENTOENSURETHATTHEFILEISSUITABLEFORUSEBYISOMEMBERBODIESINTHEUNLIKELYEVENTTHATAPROBLEMRELATINGTOITISFOUND,PLEASEINFORMTHECENTRALSECRETARIATATTHEADDRESSGIVENBELOWCOPYRIGHTPROTECTEDDOCUMENTISO2010ALLRIGHTSRESERVEDUNLESSOTHERWISESPECIFIED,NOPARTOFTHISPUBLICATIONMAYBEREPRODUCEDORUTILIZEDINANYFORMORBYANYMEANS,ELECTRONICORMECHANICAL,INCLUDINGPHOTOCOPYINGANDMICROFILM,WITHOUTPERMISSIONINWRITINGFROMEITHERISOATTHEADDRESSBELOWORISOSMEMBERBODYINTHECOUNTRYOFTHEREQUESTERISOCOPYRIGHTOFFICECASEPOSTALE56CH1211GENEVA20TEL41227490111FAX41227490947EMAILCOPYRIGHTISOORGWEBWWWISOORGPUBLISHEDINSWITZERLANDIIISO2010ALLRIGHTSRESERVEDCOPYRIGHTINTERNATIONALORGANIZATIONFORSTANDARDIZATIONPROVIDEDBYIHSUNDERLICENSEWITHISONOTFORRESALENOREPRODUCTIONORNETWORKINGPERMITTEDWITHOUTLICENSEFROMIHS,ISO113372010EISO2010ALLRIGHTSRESERVEDIIICONTENTSPAGEFOREWORDIV1SCOPE12NORMATIVEREFERENCES13TERMSANDDEFINITIONS14METHODAEXTRACTIONMETHOD241PRINCIPLE242REAGENTS243APPARATUSANDMATERIALS244PREPARATIONOFTESTSAMPLE445PROCEDURE446EXPRESSIONOFRESULTS647PRECISION648TESTREPORT65METHODBDISSOLUTIONMETHOD751PRINCIPLE752REAGENTS753APPARATUS754PREPARATIONOFINTERNALSTANDARDSOLUTIONS955PROCEDURE1056EXPRESSIONOFRESULTS1257PRECISION1258TESTREPORT12COPYRIGHTINTERNATIONALORGANIZATIONFORSTANDARDIZATIONPROVIDEDBYIHSUNDERLICENSEWITHISONOTFORRESALENOREPRODUCTIONORNETWORKINGPERMITTEDWITHOUTLICENSEFROMIHS,ISO113372010EIVISO2010ALLRIGHTSRESERVEDFOREWORDISOTHEINTERNATIONALORGANIZATIONFORSTANDARDIZATIONISAWORLDWIDEFEDERATIONOFNATIONALSTANDARDSBODIESISOMEMBERBODIESTHEWORKOFPREPARINGINTERNATIONALSTANDARDSISNORMALLYCARRIEDOUTTHROUGHISOTECHNICALCOMMITTEESEACHMEMBERBODYINTERESTEDINASUBJECTFORWHICHATECHNICALCOMMITTEEHASBEENESTABLISHEDHASTHERIGHTTOBEREPRESENTEDONTHATCOMMITTEEINTERNATIONALORGANIZATIONS,GOVERNMENTALANDNONGOVERNMENTAL,INLIAISONWITHISO,ALSOTAKEPARTINTHEWORKISOCOLLABORATESCLOSELYWITHTHEINTERNATIONALELECTROTECHNICALCOMMISSIONIECONALLMATTERSOFELECTROTECHNICALSTANDARDIZATIONINTERNATIONALSTANDARDSAREDRAFTEDINACCORDANCEWITHTHERULESGIVENINTHEISO/IECDIRECTIVES,PART2THEMAINTASKOFTECHNICALCOMMITTEESISTOPREPAREINTERNATIONALSTANDARDSDRAFTINTERNATIONALSTANDARDSADOPTEDBYTHETECHNICALCOMMITTEESARECIRCULATEDTOTHEMEMBERBODIESFORVOTINGPUBLICATIONASANINTERNATIONALSTANDARDREQUIRESAPPROVALBYATLEAST75OFTHEMEMBERBODIESCASTINGAVOTEATTENTIONISDRAWNTOTHEPOSSIBILITYTHATSOMEOFTHEELEMENTSOFTHISDOCUMENTMAYBETHESUBJECTOFPATENTRIGHTSISOSHALLNOTBEHELDRESPONSIBLEFORIDENTIFYINGANYORALLSUCHPATENTRIGHTSISO11337WASPREPAREDBYTECHNICALCOMMITTEEISO/TC61,PLASTICS,SUBCOMMITTEESC5,PHYSICALCHEMICALPROPERTIESTHISSECONDEDITIONCANCELSANDREPLACESTHEFIRSTEDITIONISO113372004,WHICHHASBEENTECHNICALLYREVISEDITALSOINCORPORATESTHETECHNICALCORRIGENDUMISO113372004/COR12007COPYRIGHTINTERNATIONALORGANIZATIONFORSTANDARDIZATIONPROVIDEDBYIHSUNDERLICENSEWITHISONOTFORRESALENOREPRODUCTIONORNETWORKINGPERMITTEDWITHOUTLICENSEFROMIHS,INTERNATIONALSTANDARDISO113372010EISO2010ALLRIGHTSRESERVED1PLASTICSPOLYAMIDESDETERMINATIONOFCAPROLACTAMANDLAUROLACTAMBYGASCHROMATOGRAPHYSAFETYSTATEMENTPERSONSUSINGTHISDOCUMENTSHOULDBEFAMILIARWITHNORMALLABORATORYPRACTICE,IFAPPLICABLETHISDOCUMENTDOESNOTPURPORTTOADDRESSALLOFTHESAFETYCONCERNS,IFANY,ASSOCIATEDWITHITSUSEITISTHERESPONSIBILITYOFTHEUSERTOESTABLISHAPPROPRIATESAFETYANDHEALTHPRACTICESANDTOENSURECOMPLIANCEWITHANYREGULATORYREQUIREMENTS1SCOPETHISINTERNATIONALSTANDARDSPECIFIESAMETHODFORDETERMININGCAPROLACTAMANDLAUROLACTAMINPOLYAMIDESBYGASCHROMATOGRAPHYITISSUITABLEPARTICULARLYFORTHEDETERMINATIONOFCAPROLACTAMINPOLYAMIDE6ANDLAUROLACTAMINPOLYAMIDE12BEARINGINMINDTHATGASCHROMATOGRAPHYOFFERSAWIDERANGEOFPOSSIBLECONDITIONS,THEMETHODSPECIFIEDISTHATSHOWNTOHAVEBEENSUITABLEINPRACTICETWOVARIANTSOFTHEBASICMETHODARESPECIFIEDMETHODAISANEXTRACTIONMETHODWITHBOILINGMETHANOL,ANDTHEEXTRACTISINJECTEDINTOAGASCHROMATOGRAPHMETHODBISAMETHODUSINGASOLVENT,ANDTHESOLUTIONISINJECTEDINTOAGASCHROMATOGRAPH2NORMATIVEREFERENCESTHEFOLLOWINGREFERENCEDDOCUMENTSAREINDISPENSABLEFORTHEAPPLICATIONOFTHISDOCUMENTFORDATEDREFERENCES,ONLYTHEEDITIONCITEDAPPLIESFORUNDATEDREFERENCES,THELAT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