1、BS EN 316:2009ICS 01.040.79; 79.060.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDWood fibre boards Definition,classification andsymbolsLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIThis British Standardwa
2、s published under theauthority of the StandardsPolicy and StrategyCommittee on 28 February2010. BSI 2010ISBN 978 0 580 62905 1Amendments/corrigenda issued since publicationDate CommentsBS EN 316:2009National forewordThis British Standard is the UK implementation of EN 316:2009. Itsupersedes BS EN 31
3、6:1999 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/541, Wood based panels.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof
4、a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 316:2009EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NO
5、RMEN 316March 2009ICS 79.060.20 Supersedes EN 316:1999 English VersionWood fibre boards - Definition, classification and symbolsPanneaux de fibres de bois - Dfinition, classification etsymbolesHolzfaserplatten - Definition, Klassifizierung undKurzzeichenThis European Standard was approved by CEN on
6、11 January 2009.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 lists and bibliographical references concerning such nationalstandards may be
7、 obtained on application to the CEN Management Centre 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 responsibility of a CEN member into its own language and notified to the CEN Man
8、agement Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw
9、ay, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and b
10、y any means reservedworldwide for CEN national Members.Ref. No. EN 316:2009: ELicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 316:2009EN 316:2009 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Terms and definitions .4 3 Classification 4 3.1 Genera
11、l 4 3.2 Classification according to production process 4 3.2.1 General 4 3.2.2 Wet process boards 5 3.2.3 Dry process boards (MDF) 5 3.3 Classification according to additional properties and applications 5 3.3.1 General 5 3.3.2 Classification according to conditions of use 5 3.3.3 Classification acc
12、ording to application purposes .6 4 Symbols 6 4.1 Symbols for different fibreboards types .6 4.2 Symbols related to conditions of use and application purpose .6 4.3 Composition of symbols .7 Bibliography 8 Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c
13、) BSIBS EN 316:2009EN 316:2009 (E) 3 Foreword This document (EN 316:2009) has been prepared by Technical Committee CEN/TC 112 “Wood-based panels”, 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 identical t
14、ext or by endorsement, September 2009, and conflicting national standards shall be withdrawn at the latest by September 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for ide
15、ntifying any or all such patent rights. This European standard supersedes EN 316:1999. Compared to EN 316:1999, the following modification has been made: a) 3.2.3 on dry process boards has been revised, deleting references to density ranges. According to the CEN/CENELEC Internal Regulations, the nat
16、ional standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
17、 Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 316:2009EN 316:2009 (E) 4 1 Scope This European Standard gives the definition, classification an
18、d symbols for wood fibreboards. 2 Terms and definitions For the purposes of this document, the following terms and definitions apply. 2.1 wood fibreboard panel material with a nominal thickness of 1,5 mm or greater, manufactured from lignocellulosic fibres with application of heat and/or pressure NO
19、TE 1 Wood fibreboards are subsequently referred to as fibreboards. NOTE 2 The bond is derived: either from the felting of the fibres and their inherent adhesive properties; or from a synthetic adhesive added to the fibres. Other additives can be included. 2.2 wet process board fibreboard having a fi
20、bre moisture content of more than 20 % at the stage of forming 2.3 dry process board fibreboard having a fibre moisture content of less than 20 % at the stage of forming NOTE Dry process boards are essentially produced under heat and pressure with the addition of a synthetic adhesive 3 Classificatio
21、n 3.1 General Fibreboards can be classified according to different criteria, e.g. related to production process, thickness, density, specific properties, conditions of use or application purposes. In this standard, a combined system of criteria is used for the classification of fibreboards, starting
22、 with the production process. 3.2 Classification according to production process 3.2.1 General Fibreboards are classified by their production process as follows: 1) wet process fibreboards; Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 316:2
23、009EN 316:2009 (E) 5 2) dry process fibreboards. NOTE The word “fibre“ is mostly omitted from the denominations defined above. Hence, reference is made to “wet process boards“ (e.g. hardboard) or “dry process boards“ (MDF). 3.2.2 Wet process boards Wet process boards are classified according to thei
24、r density, as follows: 1) hardboards (HB, density 900 kg/m3): they can be given additional properties, e.g. fire retardancy, moisture resistance, resistance against biological attack, workability (e.g. mouldability), either by specific treatment (e.g. “tempering“, “oil tempering“) or by the addition
25、 of a synthetic adhesive or other additives; 2) medium boards (MB, density 400 kg/m3to 900 kg/m3): they can be given additional properties, e.g. fire retardancy, moisture resistance; NOTE Medium boards are divided into two sub-categories, according to their density: low density medium boards (MBL, 4
26、00 kg/m3to 560 kg/m3); high density medium boards (MBH, 560 kg/m3to 900 kg/m3). 3) softboards (SB, density 230 kg/m3to 400 kg/m3): these boards have basic properties of thermal and acoustic insulation. They can be given additional properties, e.g. fire retardancy. Improved moisture resistance as wel
27、l as enhanced strength properties are usually achieved by the addition of a petrochemical substance (e.g. bitumen). 3.2.3 Dry process boards (MDF) Dry process fibreboards can be given additional properties, e.g. fire retardancy, moisture resistance, resistance against biological attack, either by ch
28、anging the composition of the synthetic adhesive or by the inclusion of other additives. NOTE Within the class dry process boards, there are a number of board types on the market. EN 622-5 5 defines such boards by technical class and a set of performance characteristics. 3.3 Classification according
29、 to additional properties and applications 3.3.1 General Each of the fibreboard types defined in 3.2.2 and 3.2.3 is furthermore classified according to a set of criteria related to specific conditions of use and different application purposes. NOTE Detailed information on the conditions of use, the
30、applications and the corresponding requirements can be found in the specification standards for fibreboards listed in the Bibliography. 3.3.2 Classification according to conditions of use Table 1 shows the classification criteria for fibreboards related to conditions of use. Table 1 Classification c
31、riteria for fibreboards related to conditions of use Conditions of use Dry conditions Humid conditions Exterior conditions Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 316:2009EN 316:2009 (E) 6 3.3.3 Classification according to application
32、purposes Table 2 shows the classification criteria for fibreboards related to application purposes. Table 2 Classification criteria for fibreboards related to application purposes Application purposes General purpose use Load-bearing applications: 1) for all load duration categories 2) for instantan
33、eous or short-term load durations only 4 Symbols 4.1 Symbols for different fibreboards types Table 3 specifies the symbols which shall be used for the fibreboard types defined by this standard. Table 3 Symbols for different fibreboards types Fibreboard type Symbol Hardboard Low density medium board
34、High density medium board Softboard Dry process board HB MBL MBH SB MDF 4.2 Symbols related to conditions of use and application purpose Table 4 specifies the symbols which shall be used to indicate the conditions of use and application purposes. Table 4 Symbols related to conditions of use and appl
35、ication purposes Conditions of use and application purposes Symbol Conditions of use: Dry conditions Humid conditions Exterior conditions no symbol H E Application purposes: General purpose use Load-bearing applications: a) for all load duration categories b) for instantaneous or short-term duration
36、s only no symbol L A S Different load-bearing categories of boards are identified by adding the digits 1 or 2 after the symbol. The digit 1 is used for load-bearing boards and the digit 2 for heavy duty load-bearing boards. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Unc
37、ontrolled Copy, (c) BSIBS EN 316:2009EN 316:2009 (E) 7 4.3 Composition of symbols The symbols indicating conditions of use and application purposes are added to the symbol of the fibreboard type after a full stop, in this sequence: fibreboard type . condition of use + application purpose + load dura
38、tion category1)+ load-bearing category1)EXAMPLE HB.HLA 2 heavy duty load bearing hardboard for use in humid conditions for all load duration categories; MDF.HLS load-bearing MDF for use in humid conditions for instantaneous or short-term load duration only. 1)Where applicable. Licensed Copy: Wang Bi
39、n, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 316:2009EN 316:2009 (E) 8 Bibliography 1 EN 622-1, Fibreboards Specifications Part 1: General requirements 2 EN 622-2, Fibreboards Specifications Part 2: Requirements for hardboards 3 EN 622-3, Fibreboards Specificati
40、ons Part 3: Requirements for medium boards 4 EN 622-4, Fibreboards Specifications Part 4: Requirements for softboards 5 EN 622-5, Fibreboards Specifications Part 5: Requirements for dry process boards (MDF) Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (
41、c) BSIBS EN 316:2009This page has been intentionally left blankLicensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 03/06/2010 07:48, Uncontrolled Copy, (c) BSIBS EN 316:2009BSI GroupHeadquarters 389Chiswick High Road,London, W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 - British Standards
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