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1、BRITISH STANDARD BS EN 622-1:2003 Fibreboards Specifications Part 1: General requirements The European Standard EN 622-1:2003 has the status of a British Standard ICS 79.060.20 ? BS EN 622-1:2003 This British Standard, was published under the authority of the Standards Policy and Strategy Committee
2、on 4 July 2003 BSI 4 July 2003 ISBN 0 580 42213 5 National foreword This British Standard is the official English language version of EN 622-1:2003. It supersedes BS EN 622-1:1997 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee B/541, Wood based panel
3、s, 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 Catalogue under th
4、e 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 correct applicat
5、ion. 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 informed; monit
6、or 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 9 and a back cover. The BSI copyright date displayed in this document indicates when the document was last is
7、sued. Amendments issued since publication Amd. No. DateComments EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 622-1 April 2003 ICS 79.060.20Supersedes EN 622-1:1997 English version Fibreboards - Specifications - Part 1: General requirements Panneaux de fibres - Exigences - Partie 1: Exigences
8、 gnrales Faserplatten - Anforderungen - Teil 1: Allgemeine Anforderungen This European Standard was approved by CEN on 3 March 2003. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national sta
9、ndard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, German). A version in any other la
10、nguage made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece,
11、Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de Stassart, 36 B-1050 Brussels 200
12、3 CENAll rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 622-1:2003 E EN 622-1:2003 (E) 2 Contents page Foreword3 1Scope 4 2Normative references 4 3Requirements.4 4Verification of compliance6 4.1General6 4.2External control6 4.3Factory pro
13、duction control.6 5Marking .7 Annex A (normative) Voluntary colour coding system for fibreboards .8 Bibliography9 EN 622-1:2003 (E) 3 Foreword This document (EN 622-1:2003) has been prepared by Technical Committee CEN/TC 112 “Wood-based panels”, the secretariat of which is held by DIN. This European
14、 Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by October 2003, and conflicting national standards shall be withdrawn at the latest by October 2003. This document supersedes EN 622-1:1997. This standard is one o
15、f a series specifying requirements for fibreboards. The titles of the other parts of this series are listed in clause 2. Compared to EN 622-1:1997 the following modifications have been made: a) annex A with A-deviations for formaldehyde emission has been deleted. The formaldehyde classes according t
16、o EN 13986 have taken into account in Table 1 and Table 3. b) EN 326-2 and EN 326-3 have been added as normative references in clause 4. Annex A is normative. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following coun- tries are bound to implement t
17、his European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portugal, Slovakia, Spain, Sweden, Switzerland and the United Kingdom. EN 622-1:2003 (E) 4 1 Scope This European Standard spec
18、ifies the requirements for some properties which are common to all uncoated fibre- board types as defined in EN 316. 2 Normative references This European Standard incorporates by dated or undated reference, provisions from other publications. These normative references are cited at the appropriate p
19、laces in the text, and the publications are listed hereafter. For dated references, subsequent amendments to or revisions of any of these publications apply to this European Standard only when incorporated in it by amendment or revision. For undated references the latest edition of the publication r
20、eferred to applies (including amendments). EN 120, Wood-based panels Determination of formaldehyde content Extraction method called the perforator method. EN 316, Wood fibreboards Definition, classification and symbols. EN 322, Wood-based panels Determination of moisture content. EN 323, Wood-based
21、panels Determination of density. EN 324-1, Wood-based panels Determination of dimensions of boards Part 1: Determination of thickness width and length. EN 324-2, Wood-based panels Determination of dimensions of boards Part 2: Determination of squareness and edge straightness. EN 326-2, Wood-based pa
22、nels Sampling, cutting and inspection Part 2: Quality control in the factory. EN 326-3, Wood-based panels Sampling, cutting and inspection Part 3: Inspection of a consignment of panels. EN 622-2, Fibreboards Specifications Part 2: Requirements for hardboards. EN 622-3, Fibreboards Specifications Par
23、t 3: Requirements for medium boards. EN 622-4, Fibreboards Specifications Part 4: Requirements for softboards. EN 622-5, Fibreboards Specifications Part 5: Requirements for dry process boards (MDF). ENV 717-1, Wood-based panels Determination of formaldehyde release Part 1: Formaldehyde emission by t
24、he chamber method. EN 717-2, Wood-based panels Determination of formaldehyde release Part 2: Formaldehyde release by the gas analysis method. 3 Requirements Fibreboards shall comply with the general requirements listed in Table 1 and the thickness tolerances listed in Table 2 when dispatched from th
25、e producing factory. For certain uses of fibreboards (see specific standards for fibreboards types and general performance standards for wood-based panels), in the case of dispatch in cut sizes, or when further machined (e.g. tongued ad grooved), special tolerances for nominal dimensions, squareness
26、 and edge straightness may be agreed upon. The values given in Table 1 and Table 2 for tolerances for nominal dimen- sions (thickness, width and length), squareness, edge straightness and density within a panel, are characterized by a moisture content in the material corresponding to a temperature o
27、f 20 C and a relative humidity of 65 %. Proper- ties not required for specific board types are marked “. EN 622-1:2003 (E) 5 The requirements relating to formaldehyde potential (perforator value) shall be met by the 95 percentile value based on test values of individual boards. The 95 percentile val
28、ue shall be equal to or less than the value given in Table 1. Table 1 General requirements for different types of fibreboard at dispatch Board Type Property Test method Hard- boards (HB) Medium boards (MBL and MBH) Soft- boards (SB) Dry process boards (MDF) Tolerances on nominal dimensions: Thicknes
29、s Length and width EN 324-1 EN 324-1 see Table 2 2 mm/m, maximum 5 mm Squarencess tolerancesEN 324-22 mm/m Edge straightness tolerance EN 324-21,5 mm/m Moisture contentEN 3224 % to 9 %4 % to 9 %4 % to 9 %4 % to 11 % Tolerance on mean density within a panel EN 323 7 % Formaldehyde potential EN 120 or
30、 ENV 717-1 Class E1 Perforator valuea Steady state emission valueb EN 120 or ENV 717-1 8 mg/100 g oven dry board Release 0,124 mg/m3 air Class E2 Perforator valuea Steady state emission valueb EN 120 or ENV 717-1 30 mg/100 g oven dry board Release 0,124 mg/m3 air a The perforator values apply to pan
31、els with a moisture content H of 6,5 %. In the case of dry process boards with different moisture contents, the perforator value shall be multiplied by a factor F calculated from the following equations: For panels with moisture contents in the range of 4 % H 9 %: F = 0,133 H + 1,86 Respectively for
32、 panels with moisture contents H 9 %: F = 0,636 + 3,12 e( 0,346 H) b Required for initial type testing other than for established products where initial type testing may also be done on the basis of existing data with EN 120 or EN 717-2 testing, either from factory production control or from externa
33、l inspection. EN 622-1:2003 (E) 6 Table 2 Tolerances on nominal thickness for fibreboards at dispatch Nominal thickness (mm) 3,5 3,5 to 5,5 5,5 Hardboards (HB) 0,3 mm 0,5 mm 0,7 mm Nominal thickness (mm) 10 10 Medium boards (MBL and MBH) 0,7 mm 0,8 mm Nominal thickness (mm) 10 10 to 19 19 Softboards
34、 (SB) 0,7 mm 1,2 mm 1,8 mm Nominal thickness (mm) 6 6 bis 19 19 Board types Dry process boards (MDF) 0,2 mm 0,2 mm 0,3 mm 4 Verification of compliance 4.1 General Verification of compliance with this European Standard shall be carried out using the test methods listed in Table 1. 4.2 External contro
35、l External control of the factory, if any, shall be carried out according to EN 326-2. The inspection of a consignment of panels shall be carried out according to EN 326-3. In the case of formaldehyde potential determined by EN 120 perforator method, however, for both external control and inspection
36、 of a consignment of panels, the respective requirements set out in Table 1 shall be the arithmetic mean value of at least three boards. Additionally, no individual board shall exceed an upper tolerance limit of + 10 %. 4.3 Factory production control Factory production control shall be carried out a
37、ccording to EN 326-2. The properties listed in Tables 1 and 2 shall be controlled, using intervals between tests not exceeding those given in Table 3. Sampling shall be carried out at random. Alternative test methods and/or unconditioned test pieces may be used if a valid correlation to the specifie
38、d test methods can be proven. The intervals between tests given in Table 3 are related to a production under statistical control. EN 622-1:2003 (E) 7 Table 3 Maximum intervals between tests for each production line PropertyMaximum test interval Formaldehyde potentiala Class E1 Class E2 24 h per type
39、 of board 1 week per type of board Moisture content8 h per type of board All other properties listed in Tables 1 and 2 8 h per type and thickness range a Some types of fibreboards are known to release little or no formaldehyde. In these cases, maximum test intervals may be increased. However, it rem
40、ains the responsibility of the producer or inspection agency, if any, to ensure compliance with this European Standard. 5 Marking Marking of fibreboards shall be carried out in accordance with EN 622-2, EN 622-3, EN 622-4 and EN 622-5 as appropriate. Colour coding is voluntary. If applied, it shall
41、comply with the system shown in annex A. This standard does not exclude colour dyeing of the whole board or individual layers of the board according to traditional national practices. EN 622-1:2003 (E) 8 Annex A (normative) Voluntary colour coding system for fibreboards Two colours are used in each
42、case. The first colour defines the panel as either intended for general purposes use or for load-bearing applications (either one or two stripes of this colour are used). The second colour identifies the panel as being suitable for use either in dry or in humid or in exterior conditions. The colours
43、 used are as follows: First colourwhitegeneral purpose First colouryellowload-bearing Second colourbluedry conditions Second colourgreenhumid conditions Second colour brownexterior conditions. EN 622-1:2003 (E) 9 Bibliography EN 13986, Wood-based panels for use in construction Characteristics, evalu
44、ation of conformity and marking. BS EN 622-1:2003 BSI 389 Chiswick High Road London W4 4AL BSI British Standards Institution BSI is the independent national body responsible for preparing British Standards. It presents the UK view on standards in Europe and at the international level. It is incorpor
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