1、BRITISH STANDARD BS EN 622-3:2004 Fibreboards Specifications Part 3: Requirements for medium boards The European Standard EN 622-3:2004 has the status of a British Standard ICS 79.060.20 BS EN 622-3:2004 This British Standard was published under the authority of the Standards Policy and Strategy Com
2、mittee on 6 August 2004 BSI 6 August 2004 ISBN 0 580 44224 1 National foreword This British Standard is the official English language version of EN 622-3:2004. It supersedes BS EN 622-3:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/541, Wood-
3、based panels, which 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 Catalog
4、ue under the section 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 corre
5、ct application. Compliance 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 info
6、rmed; 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, the EN title page, pages 2 to 15 and a back cover. The BSI copyright notice displayed in this document indicates when the docume
7、nt was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM EN6223 April2004 ICS79.060.20 SupersedesEN6223:1997 Englishversion FibreboardsSpecificationsPart3:Requirementsformedium boards PanneauxdefibresExigencesPartie3:Exigencespour p
8、anneauxmidurs FaserplattenAnforderungenTeil3:Anforderungenan mittelhartePlatten ThisEuropeanStandardwasapprovedbyCENon2February2004. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationalstandardwithoutanyalterati
9、on.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheCentralSecretariatortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertheresponsibilityofaCENmemberinto
10、itsownlanguageandnotifiedtotheCentralSecretariathasthesamestatusast heofficial versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,Cyprus,CzechRepublic,Denmark,Estonia,Finland,France, Germany,Greece,Hungary,Iceland,Ireland,Italy,Latvia,Lithuania,Luxembourg,Malta,Netherlands,Norway,Pol
11、and,Portugal, Slovakia, Slovenia,Spain,Sweden,SwitzerlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2004CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalM
12、embers. Ref.No.EN6223:2004:EEN6223:2004(E) 2 Contents Page Foreword3 1 Scope 4 2 Normativereferences 4 3 Termsanddefinitions. .5 4 Requirements.6 4.1 General6 4.2 Requirementsforgeneralpurposeboards. 6 4.2.1 Requirementsforboardsforuseindryconditions. 6 4.2.2 Requirementsforboardsforuseinhumidcondit
13、ions7 4.2.3 Requirementsforboardsforuseinexteriorconditions .7 4.3 Requirementsforloadbearingboards .8 4.3.1 General8 4.3.2 Requirementsforboardsforuseinhumidconditions8 4.3.3 Requirementsforboardsforuseinhumidconditions9 5 Verificationofcompliance 10 5.1 General10 5.2 Externalcontrol 10 5.3 Factory
14、productioncontrol .10 6 Marking .10 6.1 Generalpurposeboards .10 6.2 Loadbearingboards . 11 6.3 Colourcoding. 11 AnnexA (normative) Supplementaryproperties .12 AnnexB (normative) BoiltestaccordingtoEN10871:1995Modifiedprocedure 13 AnnexC (normative) Determinationofbendingstrengthafterboiltestaccordi
15、ngtoEN1087 1:1995Modifiedprocedure .14 Bibliography 15EN6223:2004(E) 3 Foreword Thisdocument(EN6223:2004)hasbeenpreparedbyTechnicalCommitteeCEN/TC112“Woodbased panels”,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,eitherbypublicationofanidentical text
16、orbyendorsement,atthelatestbyOctober2004,andconflictingnationalstandardsshallbewithdrawn atthelatestbyOctober2004. Thisstandardisoneofaseriesspecifyingrequirementsforfibreboards.Theotherpartsofthisseriesare listedinclause2andinthebibliography. ThisdocumentsupersedesEN6223:1997. Thefollowing,modifica
17、tionshavebeenmade: a) ThequalityrequirementsofthepaneltypesMBH.H,MBH.E,MBH.LA2,MBH.HLS1andMBH.HLS2have beenmodified. b) ThetestintervalformoistureresistancehasbeenreducedinaccordancewithEN13 986. AnnexesA,BandCarenormative. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizatio
18、nsofthefollowing countriesareboundtoimplementthisEuropeanStandard: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 andUnit
19、edKingdom.EN6223:2004(E) 4 1Scope ThisEuropeanStandardspecifiestherequirementsformedium boardsasdefinedinEN316. Thevalueslistedinthisstandardrelatetoproductpropertiesbuttheyarenotcharacteristicvaluestobeusedin designcalculations 1) . 2 Normativereferences ThisEuropeanStandardincorporatesbydatedorund
20、atedreference,provisionsfromotherpublications. Thesenormativereferencesarecitedattheappropriateplacesinthetextandthepublicationsarelisted hereafter.Fordatedreferences,subsequentamendmentstoorrevisionsofanyofthesepublicationsapplyto thisEuropeanStandardonlywhenincorporatedinitbyamendmentorrevision.Fo
21、rundatedreferencesthe latesteditionofthepublicationreferredtoapplies(includingamendments). EN310:1993, WoodbasedpanelsDeterminationofmodulusofelasticityinbendingandofbending strength. EN317, ParticleboardsandFibreboardsDeterminationofswellinginthicknessafterimmersioninwater. EN318, WoodbasedpanelsDe
22、terminationofdimensionalchangesassociatedwithchangesinrelative humidity EN319, ParticleboardsandFibreboardsDeterminationoftensilestrengthperpendiculartotheplaneofthe board. EN3261, WoodbasedpanelsSampling,cuttingandinspectionPart1:Samplingandcuttingoftest piecesandexpressionoftestresults. EN3262, Wo
23、odbasedpanelsSampling,cuttingandinspectionPart2:Qualitycontrolinthefactory. EN3263, WoodbasedpanelsSampling,cuttingandinspectionPart3:Inspectionofanisolatedlotof panels. EN6221, FibreboardsSpecificationsPart1:Generalrequirements. EN10871:1995, ParticleboardsDeterminationofmoistureresistancePart1:Boi
24、ltest EN12871, WoodbasedpanelsPerformancespecificationsandrequirementsforloadbearingboardsfor useinfloors,wallsandroofs . EN13986:2002, WoodbasedpanelsforuseinconstructionCharacteristics,evaluationofconformingand marking. ENV199511:1993, Eurocode5Design of timber structuresPart11:General rules and r
25、ules for buildings. ISO3340, FibrebuildingboardsDeterminationofsandcontent. 1) Suchcharacteristicvalues(e.g.foruseindesigncalculationinENV199511)areeithergivenEN123691or derivedbytestingaccordingtoEN789,EN1058andENV1156.EN6223:2004(E) 5 3 Termsanddefinitions ForthepurposesofthisEuropeanStandard,thef
26、ollowingtermsanddefinitionsapply. 3.1 dryconditions conditionscorrespondingtoserviceclass1ofENV199511:1993whichischaracterisedbyamoisture contentinthematerialcorrespondingtoatemperatureof20Candarelativehumidityofthe surroundingaironlyexceeding65%forafewweeksperyear EN13986:2002 3.2 humidconditions c
27、onditionscorrespondingtoserviceclass2ofENV199511:1993whichischaracterisedbyamoisture contentinthematerialcorrespondingtoatemperatureof20Candarelativehumidityofthe surroundingaironlyexceeding85%forafewweeksperyear EN13986:2002 3.3 externalconditions conditionscorrespondingtoserviceclass3ofENV199511:1
28、993whichischaracterisedby climaticconditionsleadingtohighermoisturecontentsthaninserviceclass2 EN13986:2002 3.4 generalpurposeuse allnonloadbearingapplications,e.g.furnitureandfitments 3.5 loadbearinguse useinaloadbearingconstruction,i.e. anorganizedassemblyofconnectedpartsdesignedtoprovide mechanic
29、alresistanceandstabilitytotheworks.Alsoreferredtoas“structure” 3.6 loaddurationcategory seeTable1 Table1Loaddurationcategories Loaddurationcategory Orderofaccumulateddurationof characteristicload Examplesofloading Permanent morethan10years selfweight Longterm 6monthsto10years storage Mediumterm 1wee
30、kto6months imposedload Shortterm lessthan1week snow a , wind Instantaneous accidentalloading a Inareaswhichhaveaheavysnowloadforaprolongedperiodoftime.partoftheloadshouldberegardedasmediumterm.EN6223:2004(E) 6 4Requirements 4.1General MediumboardsshallcomplywiththegeneralrequirementsofEN6221together
31、withtherelevantrequire mentssetoutin4.2and4.3ofthisstandard.Therequirementsforsomesupplementarypropertiesaregivenin annexA. TherequirementsinTables2to8shallbemetby5percentilevalues(95percentilevaluesinthecaseof swellinginthickness),basedonthemeantestvaluesforindividualpanelsandcalculatedinaccordance
32、with EN3261.Inthecaseofswellinginthickness,theyshallbeequaltoorlessthanthevaluesintheTables,and inthecaseofallotherproperties,theyshallbeequaltoorgreaterthanthevaluesintheTables.Thevaluesin theTablesforbothbendingstrengthandmodulusofelasticityshallapplytotestresultsobtainedinany directionintheplaneo
33、fthepanel. Propertiesnotrequiredforspecificboardtypesaremarked“. Withtheexceptionofswellinginthickness,internalbondafterboiltest(seeTables7,8)andbendingstrength afterboiltest(seeTables3,4,8),thevaluesgivenintheTablesarecharacterisedbyamoisturecontentinthe materialcorrespondingtoatemperatureof20 Cand
34、arelativehumidityof65%.Thevaluesgivenforswelling inthickness,internalbondafterboiltestandbendingstrengthafterboiltestarecharacterisedbyamoisture contentinthematerialcorrespondingtoatemperatureof20 Candarelativehumidityof65%beforethe treatment(immersioninwaterorboiltreatment). Themoistureresistanceof
35、mediumboardsforuseinhumidandexteriorconditions(seeTables3,4,7and8)is assessedeitherasinternalbondafterboiltest(accordingtoEN10871),withthemodifiedproceduregivenin annexB,orasbendingstrengthafterboiltest(accordingtoEN10871),withthemodifiedproceduregivenin annexC.Thesetwotestingproceduresareregardedas
36、equivalentalternatives.Whererequirementsforboth proceduresaregiven,compliancewithonlyonesetofspecificationsisrequired(seeTable8). 4.2 Requirementsforgeneralpurposeboards 4.2.1 Requirementsforboardsforuseindryconditions Table2specifiestherequirementsforgeneralpurposeboardsforuseindryconditions,e.g.in
37、teriorfitments includingfurniture. Table2Requirementsforgeneralpurposeboardsforuse indryconditions(typesMBLandMBH) Rangesofnominalthickness(mm) Boardtypes 10 10 Property Test method Unit MBL MBH MBL MBH Swellingin thickness24h EN317 % 20 15 20 15 Internalbond EN319 N/mm 2 0,10 0,10 Bendingstrength E
38、N310 N/mm 2 10 15 8 12EN6223:2004(E) 7 4.2.2 Requirementsforboardsforuseinhumidconditions Table3specifiestherequirementsforgeneralpurposeboardsforuseinhumidconditions. Table3Requirementsforgeneralpurposeboardsforuseinhumidconditions (typesMBL.HandMBH.H) Rangesofnominalthickness(mm) Boardtypes 10 10
39、Property Test method Unit MBL.H MBH.H MBL.H MBH.H Swellinginthickness 24h EN317 % 15 12 15 12 Internalbond EN319 N/mm 2 0,30 0,30 Bendingstrength EN310 N/mm 2 12 18 10 15 Bendingstrength afterboiltest EN310 EN10871 N/mm 2 6 5 a a Forthedeterminationofbendingstrengthafterboiltest,themodifiedprocedure
40、giveninannexCapplies.Bendingstrength afterboiltestiscalculatedontheinitialdimensionsofthetestpiece(beforeboiltreatment). 4.2.3 Requirementsforboardsforuseinexteriorconditions Table4specifiestherequirementsforgeneralpurposeboardsforuseinexteriorconditions. Table4Requirementsforgeneralpurposeboardsfor
41、useinexteriorconditions (typesMBL.EandMBH.E) Rangesofnominalthickness(mm) Boardtypes 10 10 Property Test method Unit MBL.E MBH.E MBL.E MBH.E Swellinginthickness 24h EN317 % 9 7 9 7 Internalbond EN319 N/mm 2 0,30 0,30 Bendingstrength EN310 N/mm 2 14 18 12 18 Modulusofelasticity inbending EN310 N/mm 2
42、 2200 2200 Bendingstrength afterboiltest a EN310 EN10871 N/mm 2 66 a Forthedeterminationofbendingstrengthafterboiltest,themodifiedproceduregiveninannexCapplies.Bendingstrength afterboiltestiscalculatedontheinitialdimensionsofthetestpiece(beforeboiltreatment).EN6223:2004(E) 8 4.3 Requirementsforloadb
43、earingboards 4.3.1General Requirementsforloadbearingboardsareonlyapplicableto highdensitymediumboards ofthegeneric typeMBH . 4.3.2Requirementsforboardsforuseindryconditions Table5specifiestherequirementsforloadbearingboardsforuseindryconditions forallloadduration categories. Table5Requirementsforloadbearingboardsforuseindryconditions (typeMBH.LA1) Rangesofnominalthickness(mm) Property Test method Unit 10 10 Swellingin
