1、Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 03 August 2004, Uncontrolled Copy, (c) BSIBRITISH STANDARD BS EN 14323:2004 Wood-based panels Melamine faced boards for interior uses Test methods The European Standard EN 14323:2004 has the status of a British Standard ICS 79
2、060.01 Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 03 August 2004, Uncontrolled Copy, (c) BSIBS EN 14323:2004 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 11 May 2004 BSI 11 May 2004 ISBN 0 580 43752 3 Nation
3、al foreword This British Standard is the official English language version of EN 14323:2004. The UK participation in its preparation was entrusted to Technical Committee B/541, Wood-based panels, which has the responsibility to: A list of organizations represented on this committee can be obtained o
4、n 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 Correspondence Index”, or by using the “Search” facility of the
5、 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 not of itself confer immunity from legal obligations. aid enqu
6、irers 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 developments and promulgate them in the UK. Summary of pages This doc
7、ument comprises a front cover, an inside front cover, the EN title page, pages 2 to 17 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 Comments Licensed Copy: Wang Bin, ISO/Exchange C
8、hina Standards Information Centre, 03 August 2004, Uncontrolled Copy, (c) BSIEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN14323 March2004 ICS79.060.01 Englishversion WoodbasedpanelsMelaminefacedboardsforinterioruses Testmethods PanneauxbasedeboisPanneauxsurfacsmlamins pourusagesintrieursMthodesd
9、essais HolzwerkstoffeMelaminbeschichtetePlattenzur VerwendungimInnenbereichPrfverfahren ThisEuropeanStandardwasapprovedbyCENon16January2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutany
10、alteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENme
11、mberintoitsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,No
12、rway,Poland,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENn
13、ationalMembers. Ref.No.EN14323:2004:E Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 03 August 2004, Uncontrolled Copy, (c) BSIEN14323:2004(E) 2 Contents Page Foreword. 3 1 Scope . 4 2 Normativereferences . 4 3 Testpieces. 4 4 Conditioningoftestpieces. . 4 5 Testmethods .
14、4 5.1 Dimensions(thickness,lengthandwidth) . 4 5.2 Flatness 4 5.3 Edgedamage. 5 5.4 Surfacedefects . 5 5.5 Resistancetoscratching . 7 5.6 Resistancetostaining 7 5.7 Resistancetocracking . 8 5.8 Colourmatchingandsurfacetexture . 9 5.9 Resistancetoabrasionofthedecorativesurfacelayer . 10 5.10 Resistan
15、cetocigaretteburn. . 11 5.11 Resistancetowatervapour . 12 5.12 Resistancetocolourchangeinxenonarclight. .12 5.13 Glosslevel . 13 5.14 Resistancetoimpactbylargediametersteelball 14 6 Testreport . 15 AnnexA (informative) Stainingagents. 16 Bibliography . 17 Licensed Copy: Wang Bin, ISO/Exchange China
16、Standards Information Centre, 03 August 2004, Uncontrolled Copy, (c) BSIEN14323:2004(E) 3 Foreword Thisdocument(EN14323:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC112“Woodbased panels”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicati
17、onofanidentical textorbyendorsement,atthelatestbySeptember2004,andconflictingnationalstandardsshallbe withdrawnatthelatestbySeptember2004. AnnexAisinformative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsofthefollowing countriesareboundtoimplementthisEuropeanStandar
18、d:Austria,Belgium,Cyprus,CzechRepublic, Denmark,Estonia,Finland,France,Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania, Luxembourg,Malta,Netherlands,Norway,Poland,Portugal,Slovakia,Slovenia,Spain,Sweden,Switzerland andUnitedKingdom. Licensed Copy: Wang Bin, ISO/Exchange China Standards
19、 Information Centre, 03 August 2004, Uncontrolled Copy, (c) BSIEN14323:2004(E) 4 1Scope ThisEuropeanStandardspecifiestestmethodsforthedeterminationofcharacteristicsofmelaminefaced boards(MFB)asdefinedinEN14322. 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorundatedreference,provision
20、sfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Forundatedreferencesthe l
21、atesteditionofthepublicationreferredtoapplies(includingamendments). EN3241, WoodbasedpanelsDeterminationofdimensionsofboardsPart1:Determinationofthick ness,widthandlength prEN4382:2002, Highpressuredecorativelaminates(HPL)Sheetsbasedonthermosettingresins (usuallycalledlaminates)Part2:Determinationof
22、properties ENISO2813 ,PaintsandvarnishesDeterminationofspecularglossofnonmetallicpaintfilmsat20,60 and85(ISO2813:1994,includingTechnicalCorrigendum1:1997) ENISO48922, PlasticsMethodsofexposuretolaboratorylightsourcesPart2:Xenonarcsources(ISO 48922:1994) ISO9352, PlasticsDeterminationofresistancetowe
23、arbyabrasivewheels 3 Testpieces Thetestpiecesforthefollowingtestsshallbetakenatleast150mmfromtheedgeoftheproduct.When needed,thelongitudinalortransversedirectionofthedecorativesurfaceshallbespecifiedbythemanu facturerforthetestsontheproducts. 4 Conditioningoftestpieces Unlessspecifiedotherwiseforthe
24、individualtests,thetestpiecesshallbetestedinthereceivedstate. Incasesofdisputeorfortypeapproval,thetestpiecesshallbeconditionedinanatmosphereof(23 2)C and(50 5)%relativehumiditytoconstantmasspriortotesting. 5Test methods 5.1Dimensions(thickness,lengthandwidth) Thesepropertiesshallbedeterminedinaccor
25、dancewithEN3241. 5.2Flatness 5.2.1Principle Flatnessisdeterminedbymeasuringthemaximaldeviationoftheboardsurfacefromametalstraightedge placedattwoselectedpositionsparalleltothelongandshortedgesoftheboardorpanel. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 03 August 2004,
26、 Uncontrolled Copy, (c) BSIEN14323:2004(E) 5 5.2.2Apparatus Straightedge,of(1000 1)mmlength,withdialindicatorgauge(comparator)graduatedtopermitareading accuracyof0,1mm. 5.2.3Test pieces Thetestpieceshallbethecompleteboardundertest,asreceived,storedintheconditionsrecommendedby themanufacturer. 5.2.4P
27、rocedure Placetheboardinaverticalpositionfreefromrestraintwithonelongedgerestingonanessentiallyhorizontal floor.Placetheflatnessgaugeontheconcavesurfaceatvariouspositions.Ateachposition,measurethe greatestdistancebetweenboardsurfaceandtheflatnessgaugewithanaccuracyof0,1mm. 5.2.5Expression of results
28、 Theresultofthetestisthehighestrecordedreadingonthedialgaugeinmillimetrestothenearest0,1mm. 5.3Edgedamage 5.3.1Principle Edgedamageisdeterminedbyplacingagraduatedmaskortapemeasureontheboardorpanelundertest andmeasuringthesizeofchipsofpaperremovedfromtheedges. 5.3.2Apparatus Ametaltapemeasureormaskgr
29、aduatedindivisionsof1mm. 5.3.3Test pieces Thetestpieceistheboardorpanelasreceived. 5.3.4Procedure Thetestpieceislaidlevelonaprotectivesurface.Loosesurfacecontaminationistoberemovedusingasoft brush.Usingthemetaltapemeasureorthemaskthesizeofthechipismeasuredatrightanglestotheboard edge,acrossthechipto
30、wardsthecentreoftheboard. 5.3.5Expression of results Recordthedimensionsofthelargestchipofpaperremovedtothenearestmm. 5.4Surfacedefects 5.4.1Principle Inspectionofboardsforsurfaceappearanceunderstandardizedconditionsoflightingandviewing. Surfacedefectsarelargerthan0,8mm 2 andthosethatcanbeidentified
31、whenthesurfacetextureisviewed fromadistanceof0,7mandatanangleaboutof45. Licensed Copy: Wang Bin, ISO/Exchange China Standards Information Centre, 03 August 2004, Uncontrolled Copy, (c) BSIEN14323:2004(E) 6 5.4.2Apparatus Diffusedlightsource,providingevenlydiffusedlightgivinganilluminationonthetestar
32、eabetween2.000Lux and5.000Lux.Thismayeitherbediffuseddaylightorbediffusedartificiallight.Aconvenientdistanceofthe lightsfromtheinspectiontableisapproximately1,5m. 5.4.3Test pieces Thetestpieceshallbetheboardundertest,asreceived. 5.4.4Procedure Placetheboard,decorativefaceuppermost,ontheinspectiontab
33、leandwipeitfreeofanyloose contamination,ifnecessary,withasoftclothandanysuitablecleaningagent.Inspectitfromthedistance required(specifiedin5.4.1)fordefectssuchassmudges,smears,fingerprints,scratches,foreignparticles, damageoranyotherformofblemishevidentwithinthedecorativesurface.Theinspectorshallhav
34、enormal vision,correctedifnecessary.Nomagnifyingglassshallbeusedinviewingthesheet. 5.4.5Expression of results Recordalldefectsidentifyingtype,numberandsizeofdefectsandsumupsurfacesandlength. NOTE Theadmissiblesizeofdefectsisbasedonamaximumcontaminationareaequivalenttoaunitofdefectsand isproportional
35、tothestandarddeliverysizeofthemanufacturer.Thetotaladmissibleareaofcontaminationmaybe concentratedinonespotordispersedoveranamountofsmallerdefects. Incaseofprecutpanelsthecumulativedefectisreferredtothestandarddeliverysizesofthemanufacturers oramountofdelivery. EXAMPLE Permittedunitofdefect(seeEN143
36、22)inthissampleis2mm 2 /m 2 Standarddeliverysizeofthemanufacturer:5000mm 2000mm Points: Thepermissibletotalerror(TE)iscalculatedasfollows: TE=Boardlength Boardwidth Permittedunitofdefect=5000mm 2000mm 2mm 2 /m 2 =20mm 2 Thefollowingerrorsarethereforepermitted: 1 20mm 2 defect,or 2 10mm 2 defect,or 3
37、 6,6mm 2 defectetc. Length: Thepermissibletotalerror(TE)iscalculatedasfollows: TE=Boardlength Boardwidth Permittedunitofdefect=5000mm 2000mm 20mm/m 2 =200mm Thefollowingerrorsarethereforepermitted: 1 200mmdefect 2 100mmdefect 3 66mmdefectetc. Licensed Copy: Wang Bin, ISO/Exchange China Standards Inf
38、ormation Centre, 03 August 2004, Uncontrolled Copy, (c) BSIEN14323:2004(E) 7 5.5Resistancetoscratching 5.5.1Principle Theresistancetoscratchingofthesurfaceundertestisexpressedasanumericalratingwhichdefinesthe maximumappliedloadwhichdoesnotproduceacontinuoussurfacescratch. 5.5.2Apparatus Scratchtesti
39、ngapparatusandviewingenclosureasdescribedinprEN4382:2002clause25. 5.5.3Test pieces Cutatestpiece100 mm 100 mmfromtheboardundertest.Wipethesurfaceusingcottonfabric impregnatedwithasolventsuchasacetone.Itisimportantthat,oncecleaned,thesurfaceisnotfingeredin thetestarea.Beforemakingthescratchteststoret
40、hetestpiecefor4daysinthestandardatmosphere accordingtoclause4. 5.5.4Procedure Followtheprocedurein25.6ofprEN4382:2002withthefollowingmodifications: Startthetestbymakingtwoscratchesat1,0Nwithaspacingof1mmto2mmbetweenthescratchmarks. Onthesametestpiecerepeatthisprocedurewithloadsinincrementof0,5Nuptoa
41、loadof4Nleavinga spaceof3mmto5mmbetweeneachpairofscratches.Placethescratchedsamplesinthestandard atmosphere,definedinclass4,for24hbeforefinalinspection. 5.5.5Expression of results Duringtheexamination,theoperatorshallensurethatthedoublecircleofscratchmarksselectedistruly 90%continuous. NOTE Theexami
42、nationofthesurfaceshouldtakenolongerthan10s Recordtheminimumloadgivingacontinuousmarkvisibleafter24hinthestandardatmosphere.Incasesof dispute,threeobserversshallviewthetestpieceandreporttheirresultsindependently;thefinalresultshall betheaverageofthethreereportedvalues. 5.6Resistancetostaining 5.6.1P
43、rinciple Testpiecesareleftincontactwithaseriesofstainingagentswhicharelikelytobeencounteredineveryday use.Thetimeandconditionsofcontactarespecifiedforeachstainingagent.Attheendofthespecified contactperiodthetestpiecesarewashedandexaminedforresidualsurfacemarks. 5.6.2Staining agents Thetestiscarriedoutwiththetworepresentativestainingagentsacetoneandblackcoffee.Acetoneis appliedatambienttemperature,blackcoffeeofnormaldrinkingstrengthisappliedatapproximately80C.If theproductundertestmeetsspecificationrequirementsthenitis
