1、BRITISH STANDARD BS EN 12230:2003 Surfaces for sports areas Determination of tensile properties of synthetic sports surfaces The European Standard EN 12230:2003 has the status of a British Standard ICS 97.220.10 BS EN 12230:2003 This British Standard, was published under the authority of the Standar
2、ds Policy and Strategy Committee on 15 August 2003 BSI 15 August 2003 ISBN 0 580 42468 5 National foreword This British Standard is the official English language version of EN 12230:2003. EN 12230:2003 is one of a package of standards being produced by CEN/TC 217. On publication of the entire packag
3、e, BS 7044 will be withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/57, Surfaces for sports areas, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references The Briti
4、sh 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 Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Onli
5、ne. 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 not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsib
6、le 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 cover,
7、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 Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN12230 April2003 ICS97.220.10 Englishversion Su
8、rfacesforsportsareasDeterminationoftensilepropertiesof syntheticsportssurfaces SolssportifsDterminationdescaractristiquesde tractiondessurfacessportivessynthtiques SportbdenBestimmungderZugfestigkeitseigenschaften vonKunststoffflhen ThisEuropeanStandardwasapprovedbyCENon12December2002. CENmembersare
9、boundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. This
10、EuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Czec
11、hRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,
12、36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN12230:2003EEN12230:2003(E) 2 Contents page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termanddefinition. .4 4 Principle4 5 Apparatus .4 5.1 Testmachine 4 5.2 Thicknessgauge. .5 5
13、.3 Dialgauge .5 6 Testspecimens 5 6.1 Dimensions.5 6.2 Preparationandconditioning .6 6.3 Numberoftestspecimens 6 7 Procedure .7 8 Calculationandexpressionofresults. 7 8.1 Relativeelongation . .7 8.2 Maximumtensilestrength .7 8.3 Tensilestressatrupture . 8 9 Testreport . .8 Bibliography 9EN12230:2003
14、(E) 3 Foreword Thisdocument(EN12230:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC217“Surfacesforsports areas“,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2003,andconflictingna
15、tionalstandardsshallbewithdrawnatthelatest byOctober2003. Thisstandardisoneofaseriesofmethodsoftestforsportssurfaces.ItisbasedonISO1926withmodificationof theprocedureforpreparationofthetestspecimenstotakeaccountoftheforminwhichsportssurfacingmaterials arenormallyproduced. AccordingtotheCEN/CENELECIn
16、ternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheU
17、nitedKingdom.EN12230:2003(E) 4 1Scope ThisEuropeanStandardspecifiesamethodforthedeterminationofthetensilepropertiesofmaterialsusedas surfacesforsportsareas.Itisapplicabletoelastomericmaterialswhichareusedastheupperwearinglayerof suchareas,andtoelastomericmaterialsusedasunderlayersincompositesportssu
18、rfacingsystems.Itis applicablebothtoprefabricatedsheetmaterialsandtomaterialsformedbycastingofliquidsystemscuredinsitu. NOTE Ifthenatureofthesportssurfaceissuchthataproperlyrepresentativetestpiececannotbepreparedinthemanner describedinthisstandard,thendeterminationoftensilepropertiesshouldnotbeattem
19、ptedforqualitycontrolpurposes,ora sa predictorofperformanceinuse.Withsuchmaterials,itmightbemoreappropriatetodeterminetheircompressivepropertiesor otherdynamiccharacteristicsforthesepurposes. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublicati
20、ons.These normativereferencesarecitedattheappropriateplacesinthetext,andthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe p
21、ublicationreferredtoapplies(includingamendments). ISO291, PlasticsStandardatmospheresforconditioningandtesting. 3 Termanddefinition ForthepurposesofthisEuropeanStandard,thefollowingtermanddefinitionapplies. 3.1 peaktovalleyheight geometricmeasureoftheroughnessofthetopofthesurfacing,beingthemagnitude
22、ofregularlyorirregularly recurringverticaldeviationsofasurfacefromareferencesurface,whenthedistancesbetweenthesedeviationsis alowmultipleoftheirdepth 4Principle Atestspecimenofgivenshapeissubjectedtoatensilestresstransmittedtoitbymeansofasuitabledeviceand theresultingstressstraincurveisplotted,fromw
23、hichvariousparametersaresubsequentlydeduced. 5Apparatus 5.1 Testmachine Atestmachine,suchthat: a) thetestspecimencanbeheldinthefixinggripsofthetestapparatus,thesefixinggripsmeetingthefollowing conditions: thetestspecimencanbeheldsufficientlytightlytoavoidslipping; nolocalizedpressurethatcouldtearorr
24、upturetheendsisexertedonanypartofthetestspecimen; b) themovablegripcanbemovedawayfromthefixedgripataconstantspeedof(505)mm/mininadirection paralleltothelongitudinalaxisofthetestpiece,undernoload;EN12230:2003(E) 5 c) theforcethusexertedonthetestspecimencanbereadwithamaximumerrorof1%andcanberecorded;
25、d) ifanextensometerisused,itexertsaminimumforceonthetestspecimenandelongationofthetestspecimen canbereadtoanaccuracyof0,1mm. 5.2 Thicknessgauge Thicknessgauge,accurateto0,01mmwithaplungerwithaflatmeasuringsurfacenominally4mmdiameter. 5.3 Dialgauge Dialgaugecapableofreadingto0,1mmwithaplungerhavingaf
26、latcircularcontactsurfacewithadiameterof nominally1,5mmappliedtothesurfaceunderaloadof(0,90,1)N. 6 Testspecimens 6.1Dimensions 6.1.1Profile CutthetestspecimensinaccordancewiththeshapeanddimensionsshowninFigure1. Ifthedistancebetweentheparallelsurfacesoftheextensometergaugelengthvariesbymorethan5%(to
27、lerance onparallelism),discardthetestspecimenandcutafurtherspecimen. Dimensionsinmillimetres D L 150,00,5 55 R12 R12 40 25,00,1 Key D Distancebetweenthegrips,100mm L Originalgaugelength,(50,0 0,1)mm Figure1DimensionsandshapeofatensiletestspecimenEN12230:2003(E) 6 6.1.2Thickness Sothatthetestspecimen
28、sremainsrepresentativeoftheinstalledsurfacingensurethatthethicknessofthetest specimenisthethicknessoftheinstalledsurfacing,exceptinthefollowingcases,wherefurtherpreparationis required: a) wherethethicknessoftheinstalledsportssurfaceand/orthesampleprovidedfortestisgreaterthan25mm, reducethethicknesso
29、fthetestspecimenbymachiningorcuttingtobetween20mmand25mm,takingcare duringthisoperationthatthestructureofthematerialisnotalteredandthetestspecimenremainsas representativeaspossibleoftheinstalledsportssurface; b) wherethematerialcarriesasurfacetexture,embossorgranularfinish,preparetheuppersurfaceand
30、undersideofthetestspecimenasdescribedin6.2. NOTE Preparationoftheundersideofthetestspecimentoremoveirregularitiesisnecessary,forexample,wherea onceliquidsystemhasbeenremovedfromatexturedorporoussubstrate. Afterpreparation,measurethethicknessofeachtestspecimenusingthethicknessgauge(5.2)anda measureme
31、ntforceofbetween0,8Nand1,0N. Measurethethicknessofthetestpieceataminimumoffivepositionsalongtheextensometergaugelengthand calculatetheaveragethicknesstothenearest0,1mm.Ifanyonereadingdiffersfromtheaveragethicknessby morethan5%oftheaveragevalue,discardthetestspecimen. 6.2Preparationandconditioning 6.
32、2.1 Removeanysurfaceembossorgranulartexturefromthetwoparallelsurfacesoftheextensometergauge length,toenablethethicknessofthetestspecimentobemeasured,bygrindingtheirregularsurfacewithabrasive paper,grain60,untilapeaktovalleyheightof(0,50,1)mmisachieved,or50%ofthesurfacetextureheight hasbeenabradedoru
33、ntilfurtherrubbingnolongerproducesanychangeinthesurfacecondition. 6.2.2 Measurethepeaktovalleyheightbymeansofadialgauge(5.3).Takethereferencesurfaceasaflat metalplate,pressedagainstthetestsurfaceunderaforceof3N. 6.2.3 Onthepreparedarea,makemeasurementsatnineevenlydistributedpointsandtakethemeanofthe
34、nine measurementsasthepeaktovalleyheightofthesurfacebeingexamined. 6.2.4 Wherenecessary,markthetestspecimenstoindicatetheirorientationinrelationtothedirectionof anisotropy. 6.2.5 ConditionthetestspecimensinaccordancewithoneofthestandardatmospheresgiveninISO291,fora periodofnotlessthan24h. 6.2.6 Wher
35、ethematerialofthetestspecimenshasbeenformedbycuringorchemicalcrosslinkingofliquid components,preparethetestspecimenunderconditionswhichrepresentascloselyaspossibletheconditions underwhichthesportssurfacewas,oristobe,installed.Donottestspecimensfromsuchmaterialsuntilatleast fivedayshaveelapsedfrommix
36、ingthecomponents. 6.3Numberoftestspecimens Carryoutthetestonatleastsixtestspecimens.Inthecaseofprefabricatedsheetmaterials,cutatleastthreetest specimensfromthelongitudinal(machine)directionandatleastthreefromthetransversedirection.Formaterials formedinsitu,takeatleastthreetestspecimenfromeachofthetw
37、odirectionsat90.EN12230:2003(E) 7 7Procedure Carryoutthetestunderthesameatmosphereasthatusedforconditioningthetestspecimens(see6.2.5). Clampatestspecimeninthefixinggrips.Marktheoriginalgaugelengthonthetestspecimen(seeFigure1). Applytheforcetobeexertedonthetestspecimensothatitisuniformlydistributedby
38、meansofthemovablegrip, atarateofdisplacementof(505)mm/minuntilruptureoccurs. Rejectanytestspecimenthatbreaksoutsidetheextensometergaugelengthandprepareandtestafurther specimensothatthenumberofvalidresultsisnotlessthansix. Ifanextensometerisnotused,recordtheelongationcorrespondingtoagivenforce,atsuit
39、ableintervals. Plottheresultingstressstraincurve. Repeattheprocedurefortheremainingtestspecimensuntilsixvalidresultsareobtained. 8 Calculationandexpressionofresults 8.1Relativeelongation Calculatetherelativeelongation, E,expressedasapercentageoftheoriginalgaugelength,fromthefollowing equation: L E 1
40、00 L D = (1) where D L isthevariationinlengthcorrespondingtoagivenforce,measuredbythevariationindistancebetween gaugemarks,expressedinmillimetres(mm); L istheoriginalgaugelengthofthetestpiece,expressedinmillimetres(mm). Afterdeterminationonthestressstraincurveofthecorrespondingelongations,calculate
41、c) therelativeelongation, E m ,forthemaximumstress,ifapplicable,asapercentageoftheoriginalgaugelength; d) therelativeelongation, E r ,atarupture,asapercentageoftheoriginalgaugelength. 8.2Maximumtensilestrength Calculatethemaximumtensilestress, O m ,whereapplicable,expressedinkilopascal,fromthefollow
42、ingequation: d b F O = 3 10 m m (2) where O m isthemaximumtensilestress,expressedinkilopascal(kPa); F m isthemaximumforceappliedtothetestpieceduringthetest,expressedinNewton(N);EN12230:2003(E) 8 b istheoriginalwidthoftheparallellengthofthenarrowsectionofthetestpiece,expressedinmillimetre (mm); d ist
43、heoriginalthicknessoftheparallellengthofthenarrowsectionofthetestpiece,expressedin millimetre(mm). 8.3Tensilestressatrupture Calculatethetensilestressatrupture, O r ,expressedinkilopascal,fromthefollowingequation: d b F O = 3 10 r r (3) where O r isthetensilestressatrupture,expressedinkilopascal(kPa); F r istheforceappliedtothetestpieceatthemomentofrupture,expressedinNewton(N); b istheoriginalwidthoftheparallellengthofthenarrowsectionofthetest
