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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN 622-1 : 1997 The Eu
2、ropean Standard EN 622-1 : 1997 has the status of a British Standard ICS 79.060.20 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Fibreboards Specifications Part 1. General requirements Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 15:42:58 GMT+00:00 2006, Uncontroll
3、ed Copy, (c) BSI This British Standard, having been prepared under the direction of the Sector Board for Building and Civil Engineering, was published under the authority of the Standards Board and comes into effect on 15 October 1997 BSI 1997 ISBN 0 580 28625 8 BS EN 622-1 : 1997 Amendments issued
4、since publication Amd. No.DateText affected National foreword This British Standard is the English language version of EN 622-1 : 1997. The UK participation in its preparation was entrusted to Technical Committee B/541, Wood-based panels, which has the responsibility to: aid enquirers to understand
5、the text; present to the responsible 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. A list of organizations represented on this committee can b
6、e obtained on request to its secretary. BS EN 622-1, BS EN 622-2, BS EN 622-3, BS EN 622-4 and BS EN 622-5 together supersede BS 1142 : 1989 (with the exception of appendix C, Common uses of fibre building boards in the construction industry, and appendix D, Recommendations for transportation, stora
7、ge and conditioning of fibre building boards). BS 1142 will be withdrawn in accordance with CEN procedures within 6 months of the completion of the full package of EN standards covering fibreboards and related test methods. These standards are: EN 310EN 322EN 622-1 EN 316EN 323EN 622-2 EN 317EN 324-
8、1EN 622-3 EN 318EN 324-2EN 622-4 EN 319EN 325EN 622-5 EN 320EN 382-1 EN 321EN 382-2 The material in appendices C and D of BS 1142 : 1989, together with corresponding material giving recommendations for storage, handling, selection and application of particleboard, OSB and cement-bonded particleboard
9、s, will be revised and re-issued in a new British Standard, at present in preparation. The values for dimensional tolerances and other properties given in this standard are in most cases determined and expressed using different methods of test and statistical procedures to those used to derive the v
10、alues in BS 1142. Care should therefore be taken in drawing inferences on quality by a simple comparison of the numerical values in the two standards. Cross-references The British Standards which implement international or European publications referred to in this document may be found in the BSI St
11、andards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find facility of the BSI Standards Electronic Catalogue. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a
12、 front cover, an inside front cover, the EN title page, pages 2 to 8, an inside back cover and a back cover. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 15:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI CEN European Committee for Standardization Comite Europe en de Normalisation Europa
13、isches Komitee fu r Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1997 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 622-1 : 1997 E EUROPEAN STANDARDEN 622-1 NORME EUROPE ENNE EUROPA ISCHE NORM June 1997 ICS 79
14、.060.20 Descriptors: Wooden boards, fibreboards, characteristics, specifications English version Fibreboards Specifications Part 1: General requirements Panneaux de fibres Exigences Partie 1: Exigences ge ne rales Faserplatten Anforderungen Teil 1: Allgemeine Anforderungen This European Standard was
15、 approved by CEN on 1997-04-21. 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 standard without any alteration. Up-to-date lists and bibliographical references concerning such nationa
16、l standards may be obtained on application to the Central Secretariat or to any CEN member. The European Standards exist in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notifi
17、ed to the Central Secretariat 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, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and
18、 United Kingdom. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 15:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 2 EN 622-1 : 1997 BSI 1997 Foreword This European Standard has been prepared by Technical Committee CEN/TC 112, Wood-based panels, the Secretariat of which is held by DIN.
19、 This standard is one of a series specifying requirements for fibreboards. The titles of the other parts of this series are listed in clause 2. In some CEN member countries, legislative requirements concerning the formaldehyde emission of wood-based panels exist. These A-deviations are outlined in t
20、he informative annex C. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by December 1997, and conflicting national standards shall be withdrawn at the latest by December 1997. This European Standard
21、has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to i
22、mplement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Contents Page Foreword2 1Scope3 2Normative references3 3Requirements3 4
23、Verification of compliance5 5Marking5 Annex A (informative) Bibliography6 Annex B (normative) Voluntary colour coding system for fibreboards 6 Annex C (informative) A-deviations6 Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 15:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 3 EN 622-
24、1 : 1997 BSI 1997 1 Scope This European Standard specifies the requirements for some properties which are common to all uncoated fibreboard types as defined in EN 316. 2 Normative references This standard incorporates, by dated or undated reference, provisions from other publications. These normativ
25、e references are cited at the appropriate places 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 standard only when incorporated in it by amendment or revision. For undated references, the l
26、atest edition of the publication referred to applies. EN 120Wood-based panels Determination of formaldehyde content Extraction method called the perforator method EN 316Wood fibreboards Definition, classification and symbols EN 322Wood-based panels Determination of moisture content EN 323Wood-based
27、panels Determination of density EN 324-1Wood-based panels Determination of dimensions of boards Part 1: Determination of thickness, width and length EN 324-2Wood-based panels Determination of dimensions of boards Part 2: Determination of squareness and edge straightness EN 622-2Fibreboards Specifica
28、tions Part 2: Requirements for hardboards EN 622-3Fibreboards Specifications Part 3: Requirements for medium boards EN 622-4Fibreboards Specifications Part 4: Requirements for softboards EN 622-5Fibreboards Specifications Part 5: Requirements for dry process boards (MDF) 3 Requirements Fibreboards s
29、hall comply with the general requirements listed in table 1 and the thickness tolerances listed in table 2 when dispatched from the producing factory. For certain uses of fibreboards (see specific standards for fibreboards types and general performance standards for wood-based panels), in the case o
30、f dispatch in cut sizes, or when further machined (e.g. tongued and grooved), special tolerances for nominal dimensions, squareness and edge straightness may be agreed upon. The values given in table 1 and table 2 for tolerances for nominal dimensions (thickness, width and length), squareness, edge
31、straightness and density within a panel, are characterized by a moisture content in the material corresponding to a temperature of 20 C and a relative humidity of 65 %. Properties not required for specific board types are marked . The requirements relating to formaldehyde potential (perforator value
32、) shall be met by the 95 percentile value based on test values of individual boards. The 95 percentile value shall be equal to or less than the value given in table 1. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 15:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Page 4 EN 622-1 : 1997 BS
33、I 1997 Table 1. General requirements for different types of fibreboard at dispatch PropertyTest methodBoard type Hardboards (HB)Medium boards (MBL and MBH) Softboards (SB)Dry process boards (MDF) Tolerances on nominal dimensions: ThicknessEN 324-1See table 2 Length and width EN 324-1 2 mm/m, maximum
34、5 mm Squareness tolerances EN 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 (Perforator value)1) Class A# 9 mg/100g Class B# 40 mg/100g 1) The
35、perforator values apply to panels 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
36、= 2 0,133H + 1,86 Respectively, for panels with moisture contents H 9 %: F = 0,636 + 3,12e (20,346H) Table 2. Tolerances on nominal thickness for fibreboards at dispatch Board types Hardboards (HB) Nominal thickness (mm) # 3,5 3,5 to 5,5 5,5 0,3 mm0,5 mm0,7 mm Medium boards (MBL and MBH) Nominal thi
37、ckness (mm) # 1010 0,7 mm0,8 mm Softboards (SB) Nominal thickness (mm) # 10 10 to 19 19 0,7 mm1,2 mm1,8 mm Dry process boards (MDF) Nominal thickness (mm) # 6 6 bis 19 19 0, 2 mm0, 2 mm0, 3 mm Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 15:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
38、Page 5 EN 622-1 : 1997 BSI 1997 1) It is intended to apply EN 326-2 and EN 326-3 (which are under preparation for the time being) as a statistical basis when implemented. 4 Verification of compliance 4.1 General Verification of compliance with this European Standard shall be carried out using the te
39、st methods listed in table 1. 4.2 External control External control of the factory, if any, shall be carried out according to a statistical basis 1). The inspection of a consignment of panels shall be carried out according to a statistical basis1). In the case of formaldehyde potential, however, for
40、 both external control and inspection of a consignment of panels, the respective requirements set out in table 1 shall be met by the average value of at least three boards controlled. Additionally, no individual board is allowed to exceed an upper tolerance limit of +10 %. 4.3 Internal control Inter
41、nal control shall be carried out according to a statistical basis1). 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
42、 be used if a valid correlation to the specified test methods can be proven. The intervals between tests given in table 3 are related to a production under statistical control. Table 3. Maximum intervals between tests for each production line PropertyMaximum test interval Formaldehyde potential1) Cl
43、ass A24 h per type of board Class B1 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 1)Some types of fibreboards are known to release little or no formaldehyde. In these cases, maximum test intervals may be i
44、ncreased. However, it remains the responsibility of the producer or inspection agency, if any, to ensure compliance with this EN. 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,
45、 it shall comply with the system shown in annex B. This standard does not exclude colour dyeing of the whole board or individual layers of the board according to traditional national practices. Licensed Copy: sheffieldun sheffieldun, na, Mon Nov 13 15:42:58 GMT+00:00 2006, Uncontrolled Copy, (c) BSI
46、 Page 6 EN 622-1 : 1997 BSI 1997 Annex A (informative) Bibliography prEN 326-2Wood-based panels Sampling, cutting and inspection Part 2: Quality control in the factory prEN 326-3Wood-based panels Sampling, cutting and inspection Part 3: Inspection of a consignment of panels Annex B (normative) Volun
47、tary colour coding system for fibreboards Two colours are used in each case. The first colour defines the panel as either intended for general purposes use or for loadbearing applications (either one or two stripes of this colour are used). The second colour identifies the panel as being suitable fo
48、r use either in dry or in humid or in exterior conditions. The colours used are as follows: First colourwhitegeneral purpose First colouryellowloadbearing Second colourbluedry conditions Second colourgreenhumid conditions Second colourbrownexterior conditions. Annex C (informative) A-deviations A-de
49、viation: national deviation due to regulations, the alternation of which is for the time being outside the competence of the CEN/CENELEC member. Austria: Deviating national regulation: Formaldehyde ordinance, Federal Journal No. 194/1990. In Austria, the law requires that wood-based panels shall not be put on the market if their formaldehyde concentration exceeds 0,1 ml/m3(ppm equilibrium concentration of formaldehyde in the air of a test chamber). The limit value is based on the fo