1、BRITISH STANDARD BS EN 13676:2001 Polymer coated paper and board intended for food contact Detection of pinholes The European Standard EN 13676:2001 has the status of a British Standard. ICS 55.040; 67.250 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 13676:2001 This Br
2、itish Standard, having been prepared under the direction of the Consumer Products and Services Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 June 2001 BSI 06-2001 ISBN 0 580 37329 0 National foreword This British Standard is the official E
3、nglish language version of EN 13676:2001. The UK participation in its preparation was entrusted by Technical Committee CW/47, Materials in contact with food, to Subcommittee CW/47/3, Paper and board in contact with foodstuffs, which has the responsibility to: A list of organizations represented on t
4、his subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Inde
5、x”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself co
6、nfer immunity from legal obligations. aid enquirers to understand the text; present to the responsible 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 t
7、he UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 5 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTA
8、NDARD NORMEEUROPENNE EUROPISCHENORM EN13676 April2001 ICS55.040;67.250 Englishversion Polymercoatedpaperandboardintendedforfoodcontact Detectionofpinholes Papiersetcartonsenduitsdepolymresdestinsentrer encontactaveclesdenresalimentairesDtectiondes trousdpingle KunststoffbeschichtetesPapierundPappevo
9、rgesehenfr denKontaktmitLebensmittelnAuffindenvon Nadellchern ThisEuropeanStandardwasapprovedbyCENon19February2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsa
10、ndbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandno
11、tifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFO
12、RSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13676:2001EPage2 EN13676:2001 Contents Page Foreword. 3 Introduction 4 1 Scop
13、e. 4 2 N o r m a t i v e R e f e r e n c e s . 4 3 Termsanddefinitions 4 3.1 pinhole . 4 4 P r in cip le 4 5 Reagents . 4 5.1 Ethanol 4 5.2 DyestuffE131Blue. 4 5 . 3 C o l o u r s o l u t i o n . 4 6 Apparatus 4 6.1 Generallaboratoryequipment 4 6.2 Appropriateapparatusforonesidetesting. 4 7 Sampling
14、andpreparationofsample. 5 8 Procedure 5 9 Interpretation 5 10 Testreport 5Page3 EN13676:2001 Foreword ThisEuropeanStandardhasbeenpreparedbyTechnicalCommitteeCEN/TC172“Pulp,paperandboard“,the SecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicati
15、onofanidenticaltextor byendorsement,atthelatestbyOctober2001,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2001. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechR
16、epublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom.Page4 EN13676:2001 Introduction Paperandboardissometimesprovidedwithapolymerlayerinordertogiveitbarrierproperties.Thebarrier propertiesoftheseconve
17、rtedmaterialsareinfluencedbythepresenceofintentionalorunintentionalsmallholes inthepolymerlayer,socalledpinholes. Pinholescanmakeitinappropriatetousecertainprotocols,e.g.thoseinvolvingliquidfoodsimulants,totest convertedpaperandboardintendedforfoodcontactformigrationinordertoassesscompliancewithlaws
18、or regulations. 1Scope ThisEuropeanStandardspecifiesaprocedureforthedetectionandestimationofpinholesinpolymericlayers onpaperandboard. Itisapplicabletoallkindsofpolymericcoatedpaperandboard. 2Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublication
19、s.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publ
20、icationreferredtoapplies(includingamendments). ENV11861 MaterialsandarticlesincontactwithfoodstuffsPlasticsPart1:Guidetotheselectionof conditionsand testmethodsforoverallmigration EN20535PaperandboardDeterminationofwaterabsorptivenessCobbmethod(ISO535:1991) ENISO186 PaperandboardSamplingtodeterminea
21、veragequality(ISO186:1994) 3Termsanddefinitions ForthepurposeofthisStandard,thefollowingtermsanddefinitionsapply: 3.1 pinhole intentionalorunintentionalsmallholeoropeninglargeenoughtopermitthetransferofapenetrantunderthe conditionsofthistest. 4Principle Thesampleisbroughtintoonesidecontactwithacolou
22、ringsolutionforaspecifiedtime.Thesurplussolution isremovedandanycolouredspots(pinholes)arecounted.Theresultisexpressedasnumberofpinholesper squaredecimetreofpaperorboard. 5Reagents 5.1Ethanol ,(C 2 H 5 OH,96%( v/v),suitableforanalyticalwork. 5.2Dyestuff E131 Blue (ChemicalAbstractServiceNo(CAS)35364
23、90)orCrossingScarletMOO (CAS5413752) 5.3Coloursolution ,0,5%( w/v)ofdyestuffinethanol.Dissolve0,5gofdyestuff(5.2)in100mlethanol(5.1). NOTESomecommercialsamplesofthedyestuffcouldcontaininsolublepins.Inthiscase,itisrecommended tofilterthesolutionbeforeuse. 6Apparatus 6.1Generallaboratoryequipment. 6.2
24、Appropriateapparatusforonesidetesting ,forexampletheapparatusdescribedinEN20535.Acell foronesidedmigrationtestasshowninENV11861mayalsobeused.Page5 EN13676:2001 7Samplingandpreparationofsample Iftheresultofthetestisintendedtoreflectthequalityofalotofpaper,followthesamplingprocedurespecified inENISO18
25、6.Atleast,fivespecimensforexample,eachofabout12cmx12cmordependingonthesizeof thetestingequipmentshallbeavailableforthetest.Donothumidityconditionthesamples,unlessotherwise agreed. 8Procedure Carryoutfiveparalleldeterminationsatroomtemperature. Placethespecimenintheapparatus(see6.2)withthesidetobetes
26、teduppermost.Applyasuitableamount coveringcompletelythesurfaceofthecoloursolution(see5.3)ontothespecimen.After5minpouroffthecolour solutionandremovethesamplefromtheapparatus.Wipeoffthesurfacewithsometissuepaperorasheetof unprintedkitchenroll. Examinetheexposedsurfaceofpaper.Recordthestainedspots(pin
27、holes). NOTEDuetothenatureofthisdeterminationwithdifferentstatisticalspreadsfordifferentmaterialsand situations,itisnotappropriatetoperformstatisticcalculationsinthismethod. 9Interpretation Countthenumberofpinholesinthesamplepersquaredecimetreandexpresstheaverageresultasnum ber/dm. 10Testreport Thet
28、estreportshallrefertothisEuropeanStandardandstate: a)type,originanddesignationofthesample; b)dateandplaceofsampling(ifavailable); c)dateandplaceoftesting; d)theareaofthetestpiece; e)resultofthetest; f)anydeviationfromthisstandardizedprocedurethatmayhaveaffectedtheresult.BS EN 13676:2001 BSI 389 Chis
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