1、BRITISH STANDARD BS EN 14231:2003 Natural stone test methods Determination of the slip resistance by means of the pendulum tester The European Standard EN 14231:2003 has the status of a British Standard ICS 73.020; 91.100.15 BS EN 14231:2003 This British Standard was published under the authority of
2、 the Standards Policy and Strategy Committee on 24 April 2003 BSI 24 April 2003 ISBN 0 580 41680 1 National foreword This British Standard is the official English language version of EN 14231:2003. The UK participation in its preparation was entrusted to Technical Committee B/545, Natural stone, whi
3、ch 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 the BSI Catalogue under the sect
4、ion 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 responsible for its correct application. C
5、ompliance 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 interests informed; monitor rel
6、ated 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 13 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued.
7、 Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14231 April2003 ICS73.020;91.100.15 Englishversion NaturalstonetestmethodsDeterminationoftheslipresistance bymeansofthependulumtester Mthodesdessaipourlespierresnaturelles Dterminationdelarsis
8、tancelaglissanceaumoyendu penduledefrottement PrfverfahrenfrNatursteinBestimmungdes GleitwiderstandesmitHilfedesPendelprfgertes ThisEuropeanStandardwasapprovedbyCENon26May2002. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardth
9、estatusofanationalstandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslat
10、ion undertheresponsibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,No
11、rway,Portugal,Slovakia,Spain,Sweden,SwitzerlandandUn ited Kingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2003CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers.
12、Ref.No.EN14231:2003EEN14231:2003(E) 2 Contents page Foreword. 3 1 Scope 5 2 Normativereferences . 5 3 Principle . 5 4 Termsanddefinitions. 5 5 Apparatus. 6 6 Materials. 9 7 Preparationofthespecimens 9 7.1 Sampling 9 7.2 Dimensionsofthetestspecimens 9 8 Testprocedure 10 8.1 General . 10 8.2 Testproce
13、dure(indryconditions) 10 8.3 Testprocedure(inwetconditions) . 10 9 Expressionofresults. . 11 10 Testreport 11 AnnexA(normative)Calibrationofthependulumfrictiontester . 13 A.1 Weighingofcomponents . 13 A.2 Balancingofthependulumarmassembly . 13 A.3 Settingtheeffectivespringtension 13 A.4 Settingthepo
14、interstop 13EN14231:2003(E) 3 Foreword Thisdocument(EN14231:2003)hasbeenpreparedbyTechnicalCommitteeCEN/TC246,“Naturalstones“ ,the secretariatofwhichisheldbyUNI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyOctober2003
15、,andconflictingnationalstandardsshallbewithdrawnatthelatest byOctober2003. Thisdraftstandardisoneoftheseriesofdraftstandardsfortestsonnaturalstone. Testmethodsfornaturalstoneconsistofthefollowing: EN1925, NaturalstonetestmethodsDeterminationofwaterabsorptioncoefficientbycapillarity EN1926, Naturalst
16、onetestmethodsDeterminationofcompressivestrength EN1936, NaturalstonetestmethodsDeterminationofrealdensityandapparentdensityandoftotalandopen porosity EN12370, NaturalstonetestmethodsDeterminationofresistancetocrystallisation(bytotalimmersion) EN12371, NaturalstonetestmethodsDeterminationoffrostresi
17、stance EN12372, NaturalstonetestmethodsDeterminationofflexuralstrengthunderconcentratedload EN12407, NaturalstonetestmethodsPetrographicdescription EN13161, NaturalstonetestmethodsDeterminationofflexuralstrengthunderconstantmoment EN13364, NaturalstonetestmethodsDeterminationofthebreakingloadatdowel
18、hole EN13755, NaturalstonetestmethodsDeterminationofwaterabsorptionatatmosphericpressure EN13919, NaturalstonetestmethodsDeterminationofresistancetoageingbySO 2 actioninthepresenceof humidity prEN13373, NaturalstonetestmethodsDeterminationofgeometriccharacteristics prEN14066, Naturalstonestestmethod
19、sDeterminationofresistancetoageingbythermalshock prEN14147, NaturalstonetestmethodsDeterminationofresistancetoageingbysaltmist prEN14157, NaturalstonetestmethodsDeterminationoftheabrasionresistance prEN14158, NaturalstonetestmethodsDeterminationofruptureenergy prEN14205, NaturalstonetestmethodsDeter
20、minationofKnoophardness prEN14231, NaturalstonetestmethodsDeterminationoftheslipresistancebymeansofthependulumtester prEN14579, NaturalstonetestmethodsDeterminationofsoundspeedpropagation prEN14580, NaturalstonetestmethodsDeterminationofstaticelasticmodulusEN14231:2003(E) 4 prEN14581, Naturalstonete
21、stmethodsDeterminationofthermalexpansioncoefficient NoexistingEuropeanStandardissuperseded. ThisEuropeanStandardhasanAnnexA(normative). AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechR
22、epublic,Denmark,Finland, France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Luxembourg,Malta,Netherlands,Norway,Portugal, Slovakia,Spain,Sweden,SwitzerlandandtheUnitedKingdom.EN14231:2003(E) 5 1Scope ThisEuropeanStandardspecifiesatestmethodtodeterminetheslipresistancevalueofthesurfaceofthe exposedf
23、aceofnaturalstoneelementsintendedtobeusedforflooringinbuildings. NOTE1 IfthesurfaceoftheexposedfacehasaroughnessmeasuredaccordingtoprEN13373higherthan1mmitwillbe consideredasnotslippery,withoutperformingthetest. NOTE2 Thismethodmaybeusedforlaboratorymeasurementsoronfloorsinservice. 2 Normativerefere
24、nces ThisEuropeanStandardincorporatesbydatedorundatedreference,provisionsfromotherpublications.These normativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelistedhereafter.For datedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplytothisEuropean Standar
25、donlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthelatesteditionofthe publicationreferredtoapplies. ISO48, Rubber,vulcanizedorthermoplasticsDeterminationofhardness (hardnessbetween10IRHDand100 IRHD) ISO4662, RubberDeterminationofreboundresilienceofvulcanizates ISO7619, RubberDeter
26、minationofindentationhardnessbymeansofpockethardnessmeters 3Principle Thependulumfrictiontesterincorporatesaspringloadedslidermadeofastandardrubberattachedtotheendof thependulum.Onswingingthependulumthefrictionalforcebetweensliderandtestsurfaceismeasuredbythe reductioninlengthoftheswingusingacalibra
27、tedscale. 4 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thefollowingtermsanddefinitionsapply: 4.1 slipresistance isthepropertyofthefloorsurfacetomaintaintheadhesionofpedestrianfootwear. NOTE Lossofadhesionleadstolossofcontrolbythepedestrianwithconsequentincreaseintheriskoffalling. 4.2 f
28、riction istheresistancetorelativemotionbetweentwobodiesincontact,inthiscasethesliderandthetestspecimenor thefootwearsoleandthetraffickedsurface.Thefrictionalforceistheforceactingtangentiallyinthecontactarea. 4.3 slipresistancevalue(SRV) thependulumfrictiontesterincorporatesaslidermanufacturedofrubbe
29、r.Itmeasuresthefrictionbetweenthe sliderandthetestsurfaceandprovidesastandardisedvalueoftheslipresistance.Thisiscalledtheslipresistance value(SRV)andshallbemeasuredbothindryandwetconditions.EN14231:2003(E) 6 5Apparatus 5.1 ThependulumfrictiontestershallbemanufacturedasshowninFigure1.Allbearingsandwo
30、rkingparts shallbeenclosedasfaraspossible,andallmaterialsusedshallbetreatedtopreventcorrosionunderwet conditions. 1Cscale(126mmslidinglength) 2Fscale(76mmslidinglength) 3Pointer 4Pendulum 5Rubberslider 6Levellingscrew 7Spiritlevel 8Verticaladjustmentscrew 9Testspecimenholder Figure1Pendulumfrictiont
31、esterEN14231:2003(E) 7 5.2 Thependulumfrictiontestershallhavethefollowingfeatures: 1)Aspringloadedrubbercoatedsliderasspecifiedinclauses5.4to5.10.Itshallbemountedontheendofa pendulumarmsothattheslidingedgeis(5101)mmfromtheaxisofsuspension. 2)Meansofsettingthesupportcolumnofequipmentvertical. 3)Abase
32、ofsufficientmasstoensurethattheequipmentremainsstableduringthetest. 4)Meansofraisingandloweringtheaxisofsuspensionofthependulumarmsothattheslidercan: i) swingclearofthesurfaceofthespecimen;and ii) besettotraverseasurfaceoverafixedlengthof(1261)mmwhenusingthewideslideror(761) mmwhenusingthenarrowslid
33、er.Gaugeswiththesedistancesmarkedarerequiredasshownin Figure2. 1Gauge 2Slider 3Referenceedge 4Slidinglengthmeasured 5Actualslidinglength 6Sideview 7Planview Figure2Slidinglengthgauge 5)Meansofholdingandreleasingthependulumarmsothatitfallsfreelyfromahorizontalposition. 6)Apointerofnominallengthof300m
34、m,balancedabouttheaxisofsuspension,indicatingthepositionofthe pendulumarmthroughoutitsforwardswingandmovingoverthecircularscale.Themassofthepointershallbe notmorethan85g. 7)Thefrictioninthepointermechanismshallbeadjustablesothat,withthependulumarmswingingfreelyfroma horizontalposition,theoutwardtipo
35、fthepointermaybebroughttorestontheforwardswingofthearmatapoint (101)mmbelowthehorizontal.Thisisthe0reading.EN14231:2003(E) 8 8)Acircularscale(Cscale),calibratedforaslidinglengthof126mmonaflatsurface,markedfrom0to150at intervalsoffiveunits. Acircularscale(Fscale)calibratedforaslidinglengthof76mmonafl
36、atsurfaceandmarkedfrom0to1at intervalsof0,05. 5.3 Themassofthependulumarm,includingtheslider,shallbe(1,500,03)kg.Thecentreofgravityshallbe ontheaxisofthearmatadistanceof(4105)mmfromtheaxisofsuspension . 5.4 Thewideslidershallconsistofarubberpad(76,20,5)mmwide,(25,41,0)mmlong(inthedirectionof swing)a
37、nd(64,00,5)mmthick,thecombinedmassofsliderandbaseshallbe(325)g. Thenarrowslidershallconsistofarubberpad(31,80,5)mmwide,(25,41,0)mmlongand(64,00,5)mm thick;thecombinedmassofthesliderandbaseshallbe(205)g. 5.5 Theslidershallbeheldonarigidbasewithacentrepivotingaxiswhichshallbemountedontheendofthe pendu
38、lumarminsuchawaythat,whenthearmisatthelowestpointofitsswingwiththetrailingedgeoftheslider incontactwiththetestsurface,theplaneofthesliderisangledat(263)degreestothehorizontal.Inthis configurationtheslidercanturnaboutitsaxiswithoutobstructiontofollowunevennessofthesurfaceofthetest surfaceasthependulu
39、mswings . 5.6 Theslidershallbespringloadedagainstthetestsurface.Whencalibrated,thestaticforceonthesliderasset bytheequipmentcalibrationprocedureshallbe(22,20,5)Ninitsmedianposition.Thechangeinthestaticforce ontheslidershallbenotgreaterthan0,2Npermillimetredeflectionoftheslider. 5.7 Theinitialresilie
40、nceandhardnessoftheslidershallcomplywithTable1.Thecomplianceshallbeproved withacertificateofconformityincludingthenameofthemanufactureranddateofmanufacture.Aslidershallbe discardedwhentheIRHDvaluemeasuredinaccordancewithISO7619failstocomplywiththerequirementsof theTable1ornotlaterthanthreeyearsafter
41、manufacture. Table1Propertiesofthesliderrubberat20C Resilience(%) a) 66to73 Hardness(IRHD) b) 53to65 a) LpkereboundtestinaccordancewithISO4662 b) InternationalRubberHardnessDegreesinaccordancewithISO 48 5.8 Theedgesoftheslidershallbesquareandcleancut,andtherubberfreefromcontaminationby,forexample, a
42、brasiveoroil.Theslidershallbestoredinthedarkatatemperatureintherange5Cto20C. 5.9 Beforeusinganewslideritshallbeconditionedtoproduceaminimumwidthofstrikingedgeof1mmas showninFigure3. Thisshallbeachievedbysettingupthetesterandcarryingout5swingsonadrysurfacewithafrictionvalue above40ontheCscalefollowed
43、byafurther20swingsonthesamesurfaceafterwetting.EN14231:2003(E) 9 1Rubberslider 2Aluminiumbacking 3Strikingedge 4Wornwidth(between1and3mm) Figure3Sliderassemblyillustratingthewornwidthofthestrikingedge 5.10 TheslidershallbediscardedwhenthewidthofthestrikingedgeasshowninFigure3exceeds3mmor whenitbecomesexcessivelyscoredorburred.
