1、BRITISH STANDARD BS EN 424:2002 Resilient floor coverings Determination of the effect of simulated movement of a furniture leg The European Standard EN 424:2001 has the status of a British Standard ICS 97.150 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS EN 424:2002 This B
2、ritish Standard, having been prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 26 February 2002 BSI 26 February 2002 ISBN 0 580 39124 8 National foreword This Briti
3、sh Standard is the official English language version of EN 424:2001. It supersedes BS EN 424:1993 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee PRI/60, Resilient floor coverings, which has the responsibility to: A list of organizations represented o
4、n 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 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 6, an inside back cover 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. Da
8、te CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN424 December2001 ICS97.150 SupersedesEN424:1993 Englishversion ResilientfloorcoveringsDeterminationoftheeffectof simulatedmovementofafurnitureleg RevtementsdesolrsilientsDterminationdelactiondu dplacementsimuldunpieddemeuble ElastischeBoden
9、belgeBestimmungdesVerhaltensbei einernachgeahmtenVerschiebungeinesMbelfues ThisEuropeanStandardwasapprovedbyCENon15November2001. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalteration.U
10、ptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberintoitsown
11、languageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPE
12、ANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2001CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.EN424:2001EEN424:2001(E) 2 Foreword ThisEuropeanStandardhasbeenpre
13、paredbyTechnicalCommitteeCEN/TC134“Resilientandtextilefloor coverings“,thesecretariatofwhichisheldbyBSI. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidenticaltextor byendorsement,atthelatestbyJune2002,andconflictingnationalstandardsshallbewithdrawnatthelatestb
14、y June2002. ThisEuropeanStandardsupersedesEN424:1993. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandard:Austria,Belgium,CzechRepublic,Denmark,Finland, France,Germany,Greece,Iceland,Ireland,Italy,Luxembourg,Ne
15、therlands,Norway,Portugal,Spain,Sweden, SwitzerlandandtheUnitedKingdom.EN424:2001(E) 3 1Scope ThisEuropeanStandardspecifiesamethodfordeterminingtheresistanceofaninstalledresilientfloorcoveringto themechanicalstressresultingfromthesimulatedmovementofafurnitureleg. 2Principle Theresistanceofaninstalle
16、dfloorcoveringtothemovementofafurniturelegwithroundededgesanddifferent loadingsisassessedfordeteriorationinsurfaceflatness,surfacedamage,cutsofvaryingdepthsandpenetrating edges. 3 Apparatus(seeFigures1to3) 3.1 Aframe,comprisingtwoguiderailsfixedrelativetothetestpiecesupportingthemotorandthecontrol c
17、apstan,diameter100mm.Theunladenperipheralspeedshallbe300mm/s. 3.2 Acarriage, supportedandguidedbyrailsandhavingawheelbasedesignedtopreventjerkymovements. Thetractiondeviceisfixedtothecarriageinsuchawayastoensurethatitremainsperfectlystableduringthe test. 3.3 Aforceindicatingdevice ,linkedtothecablea
18、ndtothecarriagethatpermitsidentificationofthemaximum tensilestressvalue. 3.4 Aplatformthatcanbeweightedusingatotalmassof32kg,70kgor100kg,slidingverticallyinthe carriagewithslightfrictionandrestingonthetestpiecebymeansofoneofthefeetdescribedin 3.5. 3.5 Threesquarebrassfeet conformingtothedimensionsgi
19、veninTable1. Table1Dimensionsoffeet Type Appliedmass kg Horizontaledge radiusRH mm Verticaledge radiusRV mm Distancebetween oppositeverticalfaces mm 3 70 0 +0,5% 30,05 0,10,05 34,60,05 2 100 0 +0,5% 20,05 0,10,05 33,60,05 0 32 0 +0,5% 0,10,05 0,10,05 31,70,05EN424:2001(E) 4 Dimensionsinmillimetres 3
20、00 1 2 3 4 5 6 7 8 Key 1 Forceindicatingdevice 2 Carriage 3P l a t f o r m 4 Tractiondevice 5 Floorcovering 6 Attachmenttotractiondevice 7 Furnitureleg 8R a i l s Figure1Sideviewofapparatus A A R Figure2FeetofapparatusEN424:2001(E) 5 Figure3HorizontalsectionAA 4 Samplingandpreparationoftestpiece Tak
21、earepresentativesamplefromtheavailablematerial. Prepareorselectasmooth,flatbasewithatolerancenogreaterthan1,5mmoveradistanceof600mm. NOTE Thebasemaybeasandcementscreed,oraconcreteslabfinishedwithasmoothingcoat,ifnecessary,orafibre cementboardatleast6mmthickrestingonarigidstand. Takeonetestpieceappro
22、ximately1m 2 inarea,whichshallbefittedinaccordancewiththemanufacturers instructions. 5Conditioning Conditionthetestpieceafterfittingatatemperatureof(232)Candrelativehumidityof(505)%fora minimumoffivedays. Maintaintheseconditionswhencarryingoutthetest. 6Procedure 6.1 Testpaths Ensurethatthetestpathsa
23、reatleast100mmfromtheedgeofthetestpiece.Choosetwoseparatetestpaths wherethestructureofthefloorcoveringcouldcausedifferentresultsfortestsindifferentdirections,i.e.longitudinal andtransversedirection,ortheprincipalrelieflinesinthepatternforsheetfloorcoverings,orparalleltotheedge anddiagonallyfortilesl
24、aidalternately. 6.2Testing Checkthetestpieceandguiderailstoensurethattheyarehorizontal.Removeanydustonthetestpiece. Fixtheappropriatefootundertheplatformwithtwoedgesparalleltotheframerails.Placethecarriageandthe platformontherailsandthetestpiece,andthenplacethemassontheplatform. After1min,pullthefre
25、eendofthecable(whichisturnedonceroundthecapstan),withoutexceedingaforceof 1kN,tomovetheentireunithorizontallyataspeedof150mm/sto200mm/soveradistanceofapproximately 700mm.EN424:2001(E) 6 Repeatthetesttwiceontwotestpathsineachdirectionforadistanceofatleast700mm. Recordthedamagecausedforeachtestpath.Ig
26、noreanydamagearisingbeyondthefirst600mmofeachtest path,anydamageattheendofthepathifthetensileforceexceeds1kNandanyscuffingofthesurface. 7 Expressionofresults Expresstheprincipaltypesofdamageforeachtestpathasfollows: a) deteriorationintheflatnessofthesurface; b) damagewhichpartiallydestroysthesurface
27、; c) cutsofvaryingdepths; d)penetrating edges; e) inthecaseofanopenjointfloorcovering,ajointopeninggreaterorequalto1mm; f) inthecaseofatreatedorweldedjoint,itsfailure. 8 Testreport Thetestreportshallcontainthefollowinginformation: a) areferencetothisstandard,i.e.EN424; b) acompleteidentificationofth
28、eproducttested,includingtype,sourceandmanufacturersreferencenumbers; c) previoushistoryofthesample; d) thetypeoffootused; e) theresultsforeachtestpath; f) anydeviationfromthisstandardwhichmayhaveaffectedtheresults.blankBS EN 424:2002 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Ins
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