1、Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIBRITISH 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.
2、040 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIBS EN 13780:2003 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 13 February 2004 BSI 13 February 2004 ISBN 0 580 43416 8 N
3、ational 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 It supersedes BS 7271:1990, which will be withdrawn in April 2004.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 Technical Committee TCI/66, Apparel, which has the responsibility to: A list o
4、f 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 the BSI Catalogue under the section entitled “International Standards
5、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 responsible for its correct application. Compliance with a British Standard does
6、 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 interests informed; monitor related international and European develo
7、pments 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 when the document was last issued. Amendments issued since publication
8、Amd. No. Date Comments Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN13780 February2003 ICS61.040 Englishversion TouchandclosefastenersDeterminationoflongitudinalshear strength Ferme
9、turesautoagrippantesDterminationdela rsistancelatractionlongitudinale HaftverschlsseBestimmungderLngsscherfestigkeit ThisEuropeanStandardwasapprovedbyCENon12December2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatu
10、sofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation un
11、dertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,P
12、ortugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No
13、.EN13780:2003E Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIEN13780:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .4 4 Principle4 5 Apparatus .4 6 Testspecimens 5 7 Conditioning.5 8 Pro
14、cedure .6 9 Calculationandexpressionofresults. 7 10 Testreport 8 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIEN13780:2003(E) 3 Foreword Thisdocument(EN13780:2003)hasbeenpreparedby TechnicalCommitteeCEN/TC248“Textilesandtextile pr
15、oducts“,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandard shallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyAugust2003,andconflictingnationalstandardsshallbewithdrawnatthelatestby August2003. AccordingtotheCEN/CENELECInternalRegulations,t
16、henationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom. Licen
17、sed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIEN13780:2003(E) 4 1Scope ThisEuropeanStandardspecifiesamethodfordeterminingthelongitudinalshearstrengthofatouchandclose fastener. 2 Normativereferences ThisEuropeanStandardincorporatesbydate
18、dorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevis
19、ion.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies(includingamendments). EN12240,TouchandclosefastenersDeterminationoftheoverallandeffectivewidthsoftapesandtheeffective widthofaclosure. EN20139,TextilesStandardatmospheresforconditioningandtesting(ISO139:1973). ENISO75001,Meta
20、llicmaterialsVerificationofstaticuniaxialtestingmachinesPart1:Tension/compression testingmachines(ISO75001:1999). 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply: 3.1 longitudinalshearstrength maximumforceperuniteffectivearearequiredtoseparatethetwotap
21、esformingthespecifiedclosureina shearingactionunderthespecifiedconditionsoftest 3.2 effectiveareaofaclosure effectiveareaofaclosureistheproductoftheeffectivewidthofaclosureandthelengthofaclosure 4Principle Matedcomponenttapesofatouchandclosefastenerareseparatedataconstantratesuchthattheseparation oc
22、cursprogressivelyalongtheclosureinadirectionparalleltothelengthofthetapesformingtheclosureandin theplaneoftheclosure. 5Apparatus 5.1 Constantrateofextensiontensiletestingmachine ,asspecifiedinENISO75001,connectedtoacomputer, viaasuitableinterface,capableofrecordingdataatarateofatleast20pointsperseco
23、nd. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIEN13780:2003(E) 5 5.2 Metalroller,madeofphosphorbronze , withadiameterof(1002)mm(seeFigure2),whichshallbe selectedinaccordancewithTable1. Table1Selectionofmetalroller Effectivewidth
24、ofclosure Was determinedbyEN12240 mm Metalrollermass kg W 12,0 1,0 0,1 12,0 52,0 10,0 0,1 NOTE Themostimportantparametersfortherollerareitsdiameterandmass.Itswidthshouldbechoseninaccordance withthespecificdensityofthephosphorbronzeusedinitsmanufacture. 5.3 Setofforkswithahandle (seeFigure3)whichenga
25、gesthemetalroller(5.2)andallowstherollertobe movedwithoutanyextradownforcebeingapplied(seeFigure4). 6 Testspecimens Cut4testspecimensofbothmaleandfemalecomponentsatleast100mmlongandmarkeachwithan“X“atone endanda“Y“attheotherend,suchthateachtestspecimenofliketapeismarkedidentically. 7Conditioning Con
26、ditionthetestspecimensforaminimumof24hinaccordancewiththestandardtemperateatmospherefor testingasspecifiedinEN20139.Theclosingofthetestspecimensandthetestingofthetouchandclosefasteners shallalsotakeplaceundertheseconditions. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 1
27、2 April 2004, Uncontrolled Copy, (c) BSIEN13780:2003(E) 6 8Procedure 8.1 Combinationsofclosure Make4closuresintotal,1closureeachbeingmadeasperthecombinationsshowninFigure1. Key 1Combination A 2 CombinationB 3 CombinationC 4 CombinationD Figure1Longitudinalshearstrengthcombinationsofclosure 8.2 Metho
28、dofclosure Selectthelengthofoverlapinaccordancewiththefollowingtable: 50mmforfastenersystemscomprisedofwovenhooktapeandwovenlooptape; 20mmforfastenersystemscomprisedofeitherwovenorknittedmushroomtapeandknittedlooptape; 20mmforfastenersystemscomprisedofaplasticmaletapeandknittedlooptape; 50mmforfaste
29、nersystemsnotlistedhereabove,butintheeventthattensilefailureoccurstoeitherofthetapes duringtesting,theoverlapshouldbereducedto20mm. Makeeachclosureasfollows: Placethemaletapeonaflatsurfacewiththepileuppermostandthenplacethefemaletapeontopwiththepile facingdownwardssothatonlytheselectedlengthofoverla
30、ptogetherwiththeoverallwidthmakeaclosure,using minimalhandpressure. Traversethemetalroller(5.2)atarateofapproximately200mm/salongthetapesinonedirection,then immediatelytraverseintheoppositedirection,thenturnthematingtapesover. Repeattheprocedureuntiltherollerhastraversedthematingtapes5timesineachdir
31、ectioni.e.atotalof10 times. Takecarethatthecentreofgravityoftherollerdoesnotdeviatefromthecentrelineofthetapesduringthis operation. Takecarethattherollercoverstheentirewidthofthematingtapes. NOTE Thetapesareturnedovertominimisecurvature. Licensed Copy: Wang Bin, ISO/Exchange China Standards Informat
32、ion Centre, 12 April 2004, Uncontrolled Copy, (c) BSIEN13780:2003(E) 7 8.3 Conductthetestforeachclosure Setupthetensiletestingmachine(5.1)suchthatthejawsare100mmapart. Mountthecombinedtestspecimenintothejawsofthetensiletestingmachine(5.1)suchthatthefreeendofthe femaletapeisintheupperjawandthefreeend
33、ofthemaletapeisinthelowerjaw,takingcaretoalignthetest specimeninorderthattheforceappliedisuniformlydistributedacrossthewidthoftheclosure. Setthetensilemachineinmotionataconstantrateofjawseparationof(100 10)mm/min.Recordforceagainst jawseparation,untileithertheclosurehasbeenseparatedoroneofthetapesha
34、sundergonetensilefailure. Recordthemodeoffailure. 9 Calculationandexpressionofresults 9.1 Intheeventthatatensilefailureoccurs,thenthebreakingforceshallbeconsideredastheforcerequiredto sheartheclosure. 9.2 Calculatetheeffectiveareaofclosure,bymultiplyingtheeffectivewidthoftheclosurebythelengthofthe o
35、verlapandexpresstheresultinsquarecentimetres. 2 100 cm W L A e o e = (1) 9.3 Foreachcombinationcalculatethelongitudinalshearstrengthbydividingthemaximumforcerequiredto sheartheclosurebytheeffectiveareaoftheclosureandexpresstheresultinnewtonspersquarecentimetre. 2 / cm N A F S e i i = (2) 9.4 Calcula
36、tethemeanlongitudinalshearstrengthoftheclosurebycalculatingthearithmeticmeanofthe longitudinalshearstrengthsofthe4combinations. Notestotheabovecalculations: W e =effectivewidthoftheclosure(mm) L o =lengthofoverlap(mm) A e =effectiveareaoftheclosure(cm 2 ) F i =individualforcerequiredtoshearaclosure(
37、N) S i =individuallongitudinalshearstrength(N/cm 2 ) 9.5 Expresstheminimumlongitudinalshearstrengthoftheclosureofthe4combinations. 9.6 Expressthemaximumlongitudinalshearstrengthoftheclosureofthe4combinations. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 12 April 2004, Un
38、controlled Copy, (c) BSIEN13780:2003(E) 8 10 Testreport Reportthefollowinginformation: a) numberanddateofthisEuropeanStandard; b) dateofthetest; c) identificationofthetouchandclosefastenertapes; d) lengthoftheoverlap; e) theminimumandmaximumlongitudinalshearstrengthsforthe4combinations,andthemeanlon
39、gitudinal shearstrengthoftheclosure; f) themodesoffailure; g) anydeviationfromthisstandardandanyincidentlikelytohaveaffectedtheresults. Dimensionsinmillimetres 1 9,5 9,5 100 Key 1Chooserollerwidthtomeetspecifiedmass Figure2Metalroller Licensed Copy: Wang Bin, ISO/Exchange China Standards Information
40、 Centre, 12 April 2004, Uncontrolled Copy, (c) BSIEN13780:2003(E) 9 Dimensionsinmillimetres 2 3 1 100 100 70 10 10 10 10 Key 1Handle 2Forks 3Spacebetweentheforkstobe2mmgreaterthantherollerwidth Figure3Setofforkswithahandle Figure4Rollingmechanismfortouchandclosefasteners Licensed Copy: Wang Bin, ISO
41、/Exchange China Standards Information Centre, 12 April 2004, Uncontrolled Copy, (c) BSIBS EN 13780:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in
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