1、BRITISH STANDARD BS EN 13780:2003 Touch and close fasteners Determination of longitudinal shear strength The European Standard EN 13780:2003 has the status of a British Standard ICS 61.040 BS EN 13780:2003 This British Standard was published under the authority of the Standards Policy and Strategy C
2、ommittee on 13 February 2004 BSI 13 February 2004 ISBN 0 580 43416 8 National foreword This British Standard is the official English language version of EN 13780:2003. It supersedes BS 7271:1990, which will be withdrawn in April 2004. The UK participation in its preparation was entrusted to Technica
3、l Committee TCI/66, Apparel, which has the responsibility to: A list of organizations represented on this committee 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
4、the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does not purport to include all the necessary provisions of a contract. Users are responsibl
5、e for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK
6、 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 cover, the EN title page, pages 2 to 9 and a back cover. The BSI copyright notice displayed in this document indicates w
7、hen the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13780 February2003 ICS61.040 Englishversion TouchandclosefastenersDeterminationoflongitudinalshear strength FermeturesautoagrippantesDterminationdela rsistance
8、latractionlongitudinale HaftverschlsseBestimmungderLngsscherfestigkeit ThisEuropeanStandardwasapprovedbyCENon12December2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptod
9、atelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlang
10、uageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn
11、 ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN13780:2003EEN13780:2003(E) 2 Contents page
12、Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Principle4 5 Apparatus .4 6 Testspecimens 5 7 Conditioning.5 8 Procedure .6 9 Calculationandexpressionofresults. 7 10 Testreport 8EN13780:2003(E) 3 Foreword Thisdocument(EN13780:2003)hasbeenpreparedby TechnicalCommitteeCEN/TC248
13、“Textilesandtextile products“,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandard shallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyAugust2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby August2003. AccordingtotheCEN/CENELE
14、CInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,Switzerlandandt
15、heUnitedKingdom.EN13780:2003(E) 4 1Scope ThisEuropeanStandardspecifiesamethodfordeterminingthelongitudinalshearstrengthofatouchandclose fastener. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappr
16、opriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments
17、). EN12240,TouchandclosefastenersDeterminationoftheoverallandeffectivewidthsoftapesandtheeffective widthofaclosure. EN20139,TextilesStandardatmospheresforconditioningandtesting(ISO139:1973). ENISO75001,MetallicmaterialsVerificationofstaticuniaxialtestingmachinesPart1:Tension/compression testingmachi
18、nes(ISO75001:1999). 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply: 3.1 longitudinalshearstrength maximumforceperuniteffectivearearequiredtoseparatethetwotapesformingthespecifiedclosureina shearingactionunderthespecifiedconditionsoftest 3.2 effectivea
19、reaofaclosure effectiveareaofaclosureistheproductoftheeffectivewidthofaclosureandthelengthofaclosure 4Principle Matedcomponenttapesofatouchandclosefastenerareseparatedataconstantratesuchthattheseparation occursprogressivelyalongtheclosureinadirectionparalleltothelengthofthetapesformingtheclosureandi
20、n theplaneoftheclosure. 5Apparatus 5.1 Constantrateofextensiontensiletestingmachine ,asspecifiedinENISO75001,connectedtoacomputer, viaasuitableinterface,capableofrecordingdataatarateofatleast20pointspersecond.EN13780:2003(E) 5 5.2 Metalroller,madeofphosphorbronze , withadiameterof(1002)mm(seeFigure2
21、),whichshallbe selectedinaccordancewithTable1. Table1Selectionofmetalroller Effectivewidthofclosure Was determinedbyEN12240 mm Metalrollermass kg W 12,0 1,0 0,1 12,0 52,0 10,0 0,1 NOTE Themostimportantparametersfortherollerareitsdiameterandmass.Itswidthshouldbechoseninaccordance withthespecificdensi
22、tyofthephosphorbronzeusedinitsmanufacture. 5.3 Setofforkswithahandle (seeFigure3)whichengagesthemetalroller(5.2)andallowstherollertobe movedwithoutanyextradownforcebeingapplied(seeFigure4). 6 Testspecimens Cut4testspecimensofbothmaleandfemalecomponentsatleast100mmlongandmarkeachwithan“X“atone endand
23、a“Y“attheotherend,suchthateachtestspecimenofliketapeismarkedidentically. 7Conditioning Conditionthetestspecimensforaminimumof24hinaccordancewiththestandardtemperateatmospherefor testingasspecifiedinEN20139.Theclosingofthetestspecimensandthetestingofthetouchandclosefasteners shallalsotakeplaceunderth
24、eseconditions.EN13780:2003(E) 6 8Procedure 8.1 Combinationsofclosure Make4closuresintotal,1closureeachbeingmadeasperthecombinationsshowninFigure1. Key 1Combination A 2 CombinationB 3 CombinationC 4 CombinationD Figure1Longitudinalshearstrengthcombinationsofclosure 8.2 Methodofclosure Selectthelength
25、ofoverlapinaccordancewiththefollowingtable: 50mmforfastenersystemscomprisedofwovenhooktapeandwovenlooptape; 20mmforfastenersystemscomprisedofeitherwovenorknittedmushroomtapeandknittedlooptape; 20mmforfastenersystemscomprisedofaplasticmaletapeandknittedlooptape; 50mmforfastenersystemsnotlistedhereabo
26、ve,butintheeventthattensilefailureoccurstoeitherofthetapes duringtesting,theoverlapshouldbereducedto20mm. Makeeachclosureasfollows: Placethemaletapeonaflatsurfacewiththepileuppermostandthenplacethefemaletapeontopwiththepile facingdownwardssothatonlytheselectedlengthofoverlaptogetherwiththeoverallwid
27、thmakeaclosure,using minimalhandpressure. Traversethemetalroller(5.2)atarateofapproximately200mm/salongthetapesinonedirection,then immediatelytraverseintheoppositedirection,thenturnthematingtapesover. Repeattheprocedureuntiltherollerhastraversedthematingtapes5timesineachdirectioni.e.atotalof10 times
28、. Takecarethatthecentreofgravityoftherollerdoesnotdeviatefromthecentrelineofthetapesduringthis operation. Takecarethattherollercoverstheentirewidthofthematingtapes. NOTE Thetapesareturnedovertominimisecurvature.EN13780:2003(E) 7 8.3 Conductthetestforeachclosure Setupthetensiletestingmachine(5.1)such
29、thatthejawsare100mmapart. Mountthecombinedtestspecimenintothejawsofthetensiletestingmachine(5.1)suchthatthefreeendofthe femaletapeisintheupperjawandthefreeendofthemaletapeisinthelowerjaw,takingcaretoalignthetest specimeninorderthattheforceappliedisuniformlydistributedacrossthewidthoftheclosure. Sett
30、hetensilemachineinmotionataconstantrateofjawseparationof(100 10)mm/min.Recordforceagainst jawseparation,untileithertheclosurehasbeenseparatedoroneofthetapeshasundergonetensilefailure. Recordthemodeoffailure. 9 Calculationandexpressionofresults 9.1 Intheeventthatatensilefailureoccurs,thenthebreakingf
31、orceshallbeconsideredastheforcerequiredto sheartheclosure. 9.2 Calculatetheeffectiveareaofclosure,bymultiplyingtheeffectivewidthoftheclosurebythelengthofthe overlapandexpresstheresultinsquarecentimetres. 2 100 cm W L A e o e = (1) 9.3 Foreachcombinationcalculatethelongitudinalshearstrengthbydividing
32、themaximumforcerequiredto sheartheclosurebytheeffectiveareaoftheclosureandexpresstheresultinnewtonspersquarecentimetre. 2 / cm N A F S e i i = (2) 9.4 Calculatethemeanlongitudinalshearstrengthoftheclosurebycalculatingthearithmeticmeanofthe longitudinalshearstrengthsofthe4combinations. Notestotheabov
33、ecalculations: W e =effectivewidthoftheclosure(mm) L o =lengthofoverlap(mm) A e =effectiveareaoftheclosure(cm 2 ) F i =individualforcerequiredtoshearaclosure(N) S i =individuallongitudinalshearstrength(N/cm 2 ) 9.5 Expresstheminimumlongitudinalshearstrengthoftheclosureofthe4combinations. 9.6 Express
34、themaximumlongitudinalshearstrengthoftheclosureofthe4combinations.EN13780:2003(E) 8 10 Testreport Reportthefollowinginformation: a) numberanddateofthisEuropeanStandard; b) dateofthetest; c) identificationofthetouchandclosefastenertapes; d) lengthoftheoverlap; e) theminimumandmaximumlongitudinalshear
35、strengthsforthe4combinations,andthemeanlongitudinal shearstrengthoftheclosure; f) themodesoffailure; g) anydeviationfromthisstandardandanyincidentlikelytohaveaffectedtheresults. Dimensionsinmillimetres 1 9,5 9,5 100 Key 1Chooserollerwidthtomeetspecifiedmass Figure2MetalrollerEN13780:2003(E) 9 Dimens
36、ionsinmillimetres 2 3 1 100 100 70 10 10 10 10 Key 1Handle 2Forks 3Spacebetweentheforkstobe2mmgreaterthantherollerwidth Figure3Setofforkswithahandle Figure4RollingmechanismfortouchandclosefastenersBS EN 13780:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the
37、independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorporated by Royal Charter. Revisions British Standards are updated by amendment or revision. Users of British Standards should make sure tha
38、t they possess the latest amendments or editions. It is the constant aim of BSI to improve the quality of our products and services. We would be grateful if anyone finding an inaccuracy or ambiguity while using this British Standard would inform the Secretary of the technical committee responsible,
39、the identity of which can be found on the inside front cover. Tel: +44 (0)20 8996 9000. Fax: +44 (0)20 8996 7400. BSI offers members an individual updating service called PLUS which ensures that subscribers automatically receive the latest editions of standards. Buying standards Orders for all BSI,
40、international and foreign standards publications should be addressed to Customer Services. Tel: +44 (0)20 8996 9001. Fax: +44 (0)20 8996 7001. Email: ordersbsi-. Standards are also available from the BSI website at http:/www.bsi-. In response to orders for international standards, it is BSI policy t
41、o supply the BSI implementation of those that have been published as British Standards, unless otherwise requested. Information on standards BSI provides a wide range of information on national, European and international standards through its Library and its Technical Help to Exporters Service. Var
42、ious BSI electronic information services are also available which give details on all its products and services. Contact the Information Centre. Tel: +44 (0)20 8996 7111. Fax: +44 (0)20 8996 7048. Email: infobsi-. Subscribing members of BSI are kept up to date with standards developments and receive
43、 substantial discounts on the purchase price of standards. For details of these and other benefits contact Membership Administration. Tel: +44 (0)20 8996 7002. Fax: +44 (0)20 8996 7001. Email: membershipbsi-. Information regarding online access to British Standards via British Standards Online can b
44、e found at http:/www.bsi- Further information about BSI is available on the BSI website at http:/www.bsi-. Copyright Copyright subsists in all BSI publications. BSI also holds the copyright, in the UK, of the publications of the international standardization bodies. Except as permitted under the Copyright, Designs and Patents Act 1988 no extract may be reproduced, stored in a retrieval system or transmitted in any form or by any means
