1、BRITISH STANDARDBS EN 622-2:2004Fibreboards Specifications Part 2: Requirements for hardboardsThe European Standard EN 622-2:2004 has the status of a British StandardICS 79.060.20g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g
2、54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN 622-2:2004This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2006 BSI 2006ISBN 0 580 49497 7National forewordThis British Standard was published by
3、BSI. It is the UK implementation of EN 622-2:2004 including CEN Corrigendum December 2005. It supersedes BS EN 622-2:1997 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee B/541, Wood based panels.A list of organizations represented on B/541 can be obtai
4、ned on request to its secretary.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 cannot confer immunity from legal obligations. Amendments issued since publicationAmd. No. Dat
5、e CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 622-2April 2004ICS 79.060.20Supersedes EN 622-2:1997English versionFibreboards - Specifications - Part 2: Requirements forhardboardsPanneaux de fibres - Exigences - Partie 2: Exigences pourpanneaux dursFaserplatten - Anforderungen - Teil 2:
6、 Anforderungen anharte PlattenThis European Standard was approved by CEN on 2 February 2004.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date l
7、ists and bibliographical references concerning such nationalstandards may be obtained on application to the Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the respon
8、sibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland,
9、Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussel
10、s 2004 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 622-2:2004: EIncorporating Corrigendum December 2005EN 622-2:2004 (E)2Contents PageForeword31 Scope 42 Normative references 43 Terms and definitions54 Requirements.64.1 General64
11、.2 Requirements for general purpose boards.64.3 Requirements for load-bearing boards .85 Verification of compliance 95.1 General95.2 External control95.3 Factory production control.96 Marking .106.1 General purpose boards .106.2 Load-bearing boards .106.3 Colour coding.10Annex A (normative) Suppleme
12、ntary properties .11Annex B (normative) Boil test according to EN 1087-1:1995 Modified procedure 12Annex C (normative) Determination of bending strength after boil test according to EN 1087-1:1995 Modified procedure.13Bibliography 14EN 622-2:2004 (E)3ForewordThis document (EN 622-2:2004) has been pr
13、epared by Technical Committee CEN/TC 112 “Wood-basedpanels”, the secretariat of which is held by DIN.This European Standard shall be given the status of a national standard, either by publication of an identicaltext or by endorsement, at the latest by October 2004, and conflicting national standards
14、 shall be withdrawnat the latest by October 2004.Annexes A, B and C are normative.This standard is one of a series specifying requirements for fibreboards. The other parts of this series arelisted in clause 2 and in the bibliography.This document supersedes EN 622-2:1997.The following modifications
15、have been made:a) The quality requirements of the panel types HB, HB.HLA1 and HB.HLA2 have been modified.b) The test interval for moisture resistance has been reduced in accordance with EN 13986.According to the CEN/CENELEC Internal Regulations, the national standards organizations of the followingc
16、ountries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Sw
17、itzerland andUnited Kingdom.EN 622-2:2004 (E)41 ScopeThis European Standard specifies the requirements for hardboards as defined in EN 316.The values listed in this standard relate to product properties but they are not characteristic values to be used indesign calculations1).2 Normative referencesT
18、his European Standard incorporates by dated or undated reference, provisions from other publications.These normative references are cited at the appropriate places in the text and the publications are listedhereafter. For dated references, subsequent amendments to or revisions of any of these public
19、ations apply tothis European Standard only when incorporated in it by amendment or revision. For undated references thelatest edition of the publication referred to applies (including amendments).EN 310:1993, Wood-based panels Determination of modulus of elasticity in bending and of bendingstrength.
20、EN 317, Particleboards and Fibreboards Determination of swelling in thickness after immersion in water.EN 318, Wood-based panels Determination of dimensional changes associated with changes in relative hu-midity.EN 319, Particleboards and Fibreboards Determination of tensile strength perpendicular t
21、o the plane of theboard.EN 326-1, Wood-based panels Sampling, cutting and inspection Part 1: Sampling and cutting of testpieces and expression of test results.EN 326-2, Wood-based panels Sampling, cutting and inspection Part 2: Quality control in the factory.EN 326-3, Wood-based panels Sampling, cut
22、ting and inspection Part 3: Inspection of an isolated lot ofpanels.EN 382-2, Fibreboards Determination of surface absorption Part 2: Test method for hardboards.EN 622-1, Fibreboards Specifications Part 1: General requirements.EN 1087-1:1995, Particleboards Determination of moisture resistance Part 1
23、: Boil test.EN 12871, Wood-based panels Performance specifications and requirements for load-bearing boards foruse in floors, walls and roofs.EN 13986:2002, Wood-based panels for use in construction Characteristics, evaluation of conformity andmarking.ENV 1995-1-1:1993, Eurocode 5 Design of timber s
24、tructures Part 1-1: General rules and rules forbuildings.ISO 3340, Fibre building boards Determination of sand content.1) Such characteristic values (e.g. for use in design calculation in ENV 1995-1-1) are either given EN 12369-1 or de-rived by testing according to EN 789, EN 1058 and ENV 1156.EN 62
25、2-2:2004 (E)53 Terms and definitionsFor the purposes of this European Standard, the following terms and definitions apply.3.1dry conditionsconditions corresponding to service class 1 of ENV 1995-1-1:1993 which is characterised by a moisture con-tent in the material corresponding to a temperature of
26、20 C and a relative humidity of the surrounding aironly exceeding 65 % for a few weeks per yearEN 13986:20023.2humid conditionsconditions corresponding to service class 2 of ENV 1995-1-1:1993 which is characterised by a moisture con-tent in the material corresponding to a temperature of 20 C and a r
27、elative humidity of the surrounding aironly exceeding 85 % for a few weeks per yearEN 13986:20023.3external conditionsconditions corresponding to service class 3 of ENV 1995-1-1:1993 which is characterised by climatic condi-tions leading to higher moisture contents than in service class 2EN 13986:20
28、023.4general purpose useall non-load bearing applications, e.g. furniture and fitments3.5load-bearing useuse in a load-bearing construction, i.e. an organized assembly of connected parts designed to provide me-chanical resistance and stability to the works. Also referred to as “structure”3.6load dur
29、ation categorysee Table 1Table 1 Load duration categoriesLoad duration categoryOrder of accumulated duration ofcharacteristic loadExamples of loadingPermanent more than 10 years self weightLong-term 6 months to 10 years storageMedium-term 1 week to 6 months imposed loadShort-term less than one week
30、snowa, windInstantaneous accidental loadingaIn areas which have a heavy snow load for a prolonged period of time, part of the load should be regarded as medium-term.EN 622-2:2004 (E)64 Requirements4.1 GeneralHardboards shall comply with the general requirements of EN 622-1 together with the relevant
31、 requirements setout in 4.2 and 4.3 of this standard. The requirements for some supplementary properties are given in annex A.The requirements in Tables 2 to 7 shall be met by 5 percentile values (95 percentile values in the case of swel-ling in thickness), based on the mean test values for individu
32、al panels and calculated in accordance withEN 326-1. In the case of swelling in thickness, they shall be equal to or less than the values in the Tables, andin the case of all other properties, they shall be equal to or greater than the values in the Tables. The values inthe Tables for both bending s
33、trength and modulus of elasticity shall apply to test results obtained in any direc-tion in the plane of the panel.With the exception of swelling in thickness, internal bond after boil test (see Tables 3, 4, 6, 7) and bendingstrength after boil test (see Table 7), the values given in the tables are
34、characterised by a moisture content inthe material corresponding to a temperature of 20 C and a relative humidity of 65 %. The values given forswelling in thickness, internal bond after boil test and bending strength after boil test are characterised by amoisture content in the material correspondin
35、g to a temperature of 20 C and a relative humidity of 65 % beforethe treatment (immersion in water or boil treatment).The moisture resistance of hardboards for use in humid and exterior conditions (see Tables 3, 4, 6 and 7) isassessed either as internal bond after boil test (according to EN 1087-1),
36、 with the modified procedure given inannex B, or as bending strength after boil test (according to EN 1087-1), with the modified procedure given inannex C. These two testing procedures are regarded as equivalent alternatives. Where requirements for bothprocedures are given, compliance with only one
37、set of specifications is required (see Table 7).4.2 Requirements for general purpose boards4.2.1 Requirements for boards for use in dry conditionsTable 2 specifies the requirements for general purpose boards for use in dry conditions, e.g. interior fitmentsincluding furniture.Table 2 Requirements fo
38、r general purpose boards for use in dry conditions (type HB)Ranges of nominal thickness (mm)PropertyTestmethodUnit 3,5 3,5 to 5,5 5,5Swelling in thickness24 hEN 317 % 37 30 25Internal bond EN 319 N/mm20,50 0,50 0,50Bending strength EN 310 N/mm230 30 25EN 622-2:2004 (E)74.2.2 Requirements for boards
39、for use in humid conditionsTable 3 specifies the requirements for general purpose boards for use in humid conditions.Table 3 Requirements for general purpose boards for use in humid conditions (type HB.H)Ranges of nominal thickness (mm)PropertyTestmethodUnit 3,5 3,5 to 5,5 5,5Swelling in thickness24
40、 hEN 317 % 25 20 20Internal bond EN 319 N/mm20,60 0,60 0,60Bending strength EN 310 N/mm235 32 30Internal bond afterboil testaEN 319EN 1087-1N/mm20,30 0,30 0,25aFor the determination of internal bond after boil test, the modified procedure given in annex B applies.4.2.3 Requirements for boards for us
41、e in exterior conditionsTable 4 specifies the requirements for general purpose boards for use in exterior conditions.Table 4 Requirements for general purpose boards for use in exterior conditions (type HB.E)Ranges of nominal thickness (mm)PropertyTestmethodUnit 3,5 3,5 to 5,5 5,5Swelling in thicknes
42、s24 hEN 317 % 12 10 8Internal bond EN 319 N/mm20,70 0,60 0,50Bending strength EN 310 N/mm240 35 32Modulus of elasticityin bendingEN 310 N/mm23 600 3 100 2 900Internal bond afterboil testaEN 310EN 1087-1N/mm20,50 0,42 0,35aFor the determination of internal bond after boil test, the modified procedure
43、 given in annex B applies.EN 622-2:2004 (E)84.3 Requirements for load-bearing boards4.3.1 Requirements for boards for use in dry conditionsTable 5 specifies the requirements for load-bearing boards for use in dry conditions for all load durationcategories.Table 5 Requirements for load-bearing boards
44、 for use in dry conditions (type HB.LA)Ranges of nominal thickness (mm)PropertyTestmethodUnit 3,5 3,5 to 5,5 5,5Swelling in thickness24 hEN 317 % 35 30 25Internal bond EN 319 N/mm20,60 0,60 0,60Bending strength EN 310 N/mm233 32 30Modulus of elasticityin bendingEN 310 N/mm22 700 2 500 2 300If it is
45、made known by the purchaser that the boards are intended for specific use in flooring, walls or roof-ing, the performance standard EN 12871 also has to be consulted. This may result in additional require-ments having to be complied with.4.3.2 Requirements for boards for use in humid conditionsTable
46、6 specifies the requirements for load-bearing boards for use in humid conditions for all load durationcategories.Table 6 Requirements for load-bearing boards for use in humid conditions (type HB.HLA1)Ranges of nominal thickness (mm)PropertyTestmethodUnit 3,5 3,5 to 5,5 5,5Swelling in thickness24 hEN
47、 317 % 17 15 12Internal bond EN 319 N/mm20,80 0,70 0,65Bending strength EN 310 N/mm238 36 34Modulus of elasticityin bendingEN 310 N/mm23 800 3 600 3 100Internal bond afterboil testaEN 319EN 1087-1N/mm20,50 0,42 0,35If it is made known by the purchaser that the boards are intended for specific use in
48、 flooring, walls or roof-ing, the performance standard EN 12871 also has to be consulted. This may result in additional require-ments having to be complied with.aFor the determination of internal bond after boil test, the modified procedure given in annex B applies.EN 622-2:2004 (E)9Table 7 specifie
49、s the requirements for heavy-duty load bearing boards for use in humid conditions for loadduration categories.Table 7 Requirements for heavy-duty load-bearing boards for use in humid conditions(type HB.HLA2)Ranges of nominal thickness (mm)PropertyTestmethodUnit 3,5 3,5 to 5,5 5,5Swelling in thickness24 hEN 317 % 17 15 12Internal bond EN 319 N/mm20,80 0,70 0,65Bending strength EN 310 N/mm244 42 38Modulus of elasticityin bendingEN 310 N/mm24 500 4 300 4100Internal bond afterboil testaEN 319EN 1087
