BS EN 14110-2003 Fat and oil derivatives - Fatty acid methyl esters (FAME) - Determination of methanol content《脂肪和油的衍生物 脂肪酸甲基酯(FAME) 测定甲醇含量》.pdf
《BS EN 14110-2003 Fat and oil derivatives - Fatty acid methyl esters (FAME) - Determination of methanol content《脂肪和油的衍生物 脂肪酸甲基酯(FAME) 测定甲醇含量》.pdf》由会员分享,可在线阅读,更多相关《BS EN 14110-2003 Fat and oil derivatives - Fatty acid methyl esters (FAME) - Determination of methanol content《脂肪和油的衍生物 脂肪酸甲基酯(FAME) 测定甲醇含量》.pdf(14页珍藏版)》请在麦多课文档分享上搜索。
1、BRITISH STANDARD BS EN 14110:2003 Fat and oil derivatives Fatty Acid Methyl Esters (FAME) Determination of methanol content The European Standard EN 14110:2003 has the status of a British Standard ICS 67.200.10 BS EN 14110:2003 This British Standard was published under the authority of the Standards
2、 Policy and Strategy Committee on 15 May 2003 BSI 15 May 2003 ISBN 0 580 41842 1 National foreword This British Standard is the official English language version of EN 14110:2003. The UK participation in its preparation was entrusted to Technical Committee AW/307, Oilseed animal present to the respo
3、nsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cov
4、er, the EN title page, pages 2 to 10, an inside back cover and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14110 April2003 ICS
5、67.200.10 Englishversion FatandoilderivativesFattyAcidMethylEsters(FAME) Determinationofmethanolcontent ProduitsdrivsdescorpsgrasEstersmthyliques dacidesgras(EMAG)Dterminationdelateneuren mthanol ErzeugnisseauspflanzlichenundtierischenFettenund lenFettsureMethylester(FAME)Bestimmungdes Methanolgehal
6、tes ThisEuropeanStandardwasapprovedbyCENon2January2003. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standards
7、maybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official ve
8、rsions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORM
9、ALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN14110:2003EEN14110:2003(E) 2 Foreword Thisdocument(EN14110:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC307“Oil
10、seeds,vegetable andanimalfatsandoilsandtheirbyproductsMethodsofsamplingandanalysis“,thesecretariatofwhichisheld byAFNOR. This EuropeanStandard shallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2003,andconflictingnationalstandardsshallbe
11、withdrawnatthelatest byOctober2003. ThisdocumenthasbeenpreparedunderMandateM/245onFattyAcidMethylester(FAME)giventoCENbythe EuropeanCommissionandtheEuropeanFreeTradeAssociation,andsupportsessentialrequirementsofEU Directive(s). AnnexesAandBareinformative. AccordingtotheCEN/CENELECInternalRegulations
12、,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN14
13、110:2003(E) 3 1Scope ThisEuropeanStandardspecifiesamethodforthedeterminationofmethanolcontentinfattyacidmethylesters (FAME)foruseasdieselfuelanddomesticheatingfuel.Themethodisapplicableforaconcentrationrangefrom 0,01%( m/m)to0,5%( m/m)methanol.ThemethodisnotapplicabletomixturesofFAMEwhichcontainothe
14、rlow boilingcomponents. 2Principle Thesampleisheatedat80Cinahermeticallysealedvialtoallowdesorptionofcontainedmethanolintothegas phase.Whenequilibriumisreached,adefinedpartofthegasphaseisinjectedintoagaschromatograph,where methanolisdetectedwithaflameionisationdetector.Normallymethanolistheonlypeaki
15、nthechromatogram. Theamountofmethanoliscalculatedbyreferencetoanexternalcalibration.Methanolcanalsobedetermined afteradditionofaninternalstandardtothesamplebeforeheating,followedbycalculationwiththeuseofan internalcalibrationfactor. NOTE Ifonlymanualequipmentisavailablethenonlyinternalstandardcalibr
16、ationshouldbeused. 3Reagents Useonlyreagentsofrecognizedanalyticalgrade,unlessotherwisespecified. 3.1 Methanol,ofknownpuritygreaterthan99,5%. 3.2 2propanol ,ofknownpurity,greaterthan99,5%(forprocedureA,internalcalibration). 3.3 ReferenceFAME ,withamethanolcontentlessthan0,001%( m/m). NOTE ReferenceF
17、AMEcaneitherbeobtainedfromcommercialsourcesorbywashingbythreeorfivetimeswithdistilled waterinaseparatorfunnel.FAMEshouldbethendriedbyheatingat90Cunderstirringandreducedpressure. 3.4 Carriergas ,nitrogen,heliumorhydrogen,ofknowpuritygreaterthan99%. 4Apparatus 4.1 Septumvials ,20mlcapacity. 4.2 Inerts
18、epta (e.g.TFEorViton 1) ) andmetalliccaps . 4.3 Syringe,10l,accurateto0,1l. 4.4 Gassyringe 500l,fittedwithavalve(formanualprocedure). 4.5 Crimpingpliers. 4.6 Pipettes,of1ml,2ml,5mlcapacity. 4.7 Volumetricflask ,capacity10mland25ml. 1) ThisinformationisgivenfortheconvenienceofusersofthisEuropeanStand
19、ardanddoesnotconstituteanendorsement byCENoftheseproducts.Equivalentproductsmaybeusediftheycanbeshowntoleadtothesameresults.EN14110:2003(E) 4 4.8 Gaschromatograph ,equippedwithacapillarycolumn,suitableinjector(automaticheadspacesystemora split/splitlessinjector)andflameionisationdetector,integrator.
20、 4.9 Capillarycolumn,thecolumnshalleluatemethanolasasymmetricalpeak.Stationaryphaseslike methylpolysiloxane(e.g.DB1 2) ,SE30 2) )orpolyethylenglycol(e.g.DBWAX 2) ,CARBOWAX 2) )canbeused successfullyandafilmthicknessofminimum0,5misrecommended. NOTE Theuseofapackedcolumnequippedbyoneoftheabovementione
21、dstationaryphasesorofChromosorb101 2) is alsoallowed. 4.10 Automaticheadspaceequipment Theautomaticheadspaceequipmentusedshallhavearepeatabilityof1%orbetterconcerningexperimental conditionslikeequilibriumtemperature,heatingtimes,andheadspacesamplingvolume.Thiscanbechecked,if necessary,byrepeatedanal
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