1、BS EN 622-4:2009ICS 79.060.20NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDFibreboards SpecificationsPart 4: Requirements for softboardsThis British Standardwas published under theauthority of the StandardsPolicy and StrategyCommittee on 31 May2010. BSI 2010IS
2、BN 978 0 580 62906 8Amendments/corrigenda issued since publicationDate CommentsBS EN 622-4:2009National forewordThis British Standard is the UK implementation of EN 622-4:2009. Itsupersedes BS EN 622-4:1997 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommitte
3、e 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 a contract. Users are responsible for its correct application.Compliance with a British Standard can
4、not confer immunityfrom legal obligations.BS EN 622-4:2009EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 622-4 November 2009 ICS 79.060.20 Supersedes EN 622-4:1997English Version Fibreboards - Specifications - Part 4: Requirements for softboards Panneaux de fibres - Exigences - Partie 4: Exige
5、nces pour panneaux tendres Faserplatten - Anforderungen - Teil 4: Anforderungen an porse Platten This European Standard was approved by CEN on 10 October 2009. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard t
6、he status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN Management Centre or to any CEN member. This European Standard exists in three official versions (English, French, Ger
7、man). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech
8、Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPE
9、N DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 622-4:2009: EBS EN 622-4:2009EN 622-4:2009 (E) 2 Contents Page Foreword 31
10、Scope 42 Normative references 43 Terms and definitions .44 Requirements .54.1 General 54.2 Requirements for general purpose boards .64.2.1 Requirements for boards for use in dry conditions .64.2.2 Requirements for boards for use in humid conditions64.2.3 Requirements for boards for use in external c
11、onditions.64.3 Requirements for load-bearing boards .74.3.1 Requirements for boards for use in dry conditions .74.3.2 Requirements for boards for use in humid conditions75 Verification of compliance 75.1 General 75.2 External control 75.3 Factory production control .86 Marking .86.1 Boards marketed
12、within the European Economic Area for construction applications86.2 Other boards 86.3 Colour coding .8Bibliography . 10BS EN 622-4:2009EN 622-4:2009 (E) 3 Foreword This document (EN 622-4:2009) has been prepared by Technical Committee CEN/TC 112 “Wood-based panels”, the secretariat of which is held
13、by DIN. 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 May 2010, and conflicting national standards shall be withdrawn at the latest by May 2010. Attention is drawn to the possibility that some o
14、f the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN 622-4:1997. This European Standard is one of a series specifying requirements for fibreboards. The other pa
15、rt of this series are listed in Clause 2 and in the Bibliography. Compared with EN 622-4:1997 the following modifications have been made: a) additional thickness range 36 mm introduced; b) marking requirements and definitions adapted to EN 13986. According to the CEN/CENELEC Internal Regulations, th
16、e national 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, No
17、rway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 622-4:2009EN 622-4:2009 (E) 4 1 Scope This European Standard specifies the requirements for softboards as defined in EN 316, with a density 230 kg/m3to 400 kg/m3. The values listed in this E
18、uropean Standard relate to product properties but they are not characteristic values to be used in design calculations. NOTE Panels which are intended for use exclusively as thermal insulating products are covered by EN 13171. 2 Normative references The following referenced documents are indispensab
19、le for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 310, Wood-based panels Determination of modulus of elasticity in bending and of bending strength
20、 EN 316, Wood fibre boards Definition, classification and symbols EN 317, Particleboards and fibreboards Determination of swelling in thickness after immersion in water EN 326-1, Wood-based panels Sampling, cutting and inspection Part 1: Sampling and cutting of test pieces and expression of test res
21、ults EN 326-2, Wood-based panels 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 an isolated lot of panels EN 622-1, Fibreboards Specifications Part 1: General requirements EN 13986:2004, Wood-
22、based panels for use in construction Characteristics, evaluation of conformity and marking 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 13986:2004 and the following apply. 3.1 dry conditions conditions corresponding to service class 1 of EN 1995-1-
23、1 which is characterised by a moisture content in the material corresponding to a temperature of 20 C and a relative humidity of the surrounding air only exceeding 65 % for a few weeks per year NOTE Boards of this type are suitable for use only in hazard class 1 of EN 335-3. 3.2 humid conditions con
24、ditions corresponding to service class 2 of EN 1995-1-1 which is characterised by a moisture content in the material corresponding to a temperature of 20 C and a relative humidity of the surrounding air only exceeding 85 % for a few weeks per year NOTE Boards of this type are suitable for use only i
25、n hazard classes 1 and 2 of EN 335-3. BS EN 622-4:2009EN 622-4:2009 (E) 5 3.3 external conditions conditions corresponding to service class 3 of EN 1995-1-1 which is characterised by climatic conditions leading to higher moisture contents than in service class 2 NOTE Boards of this type are suitable
26、 for use only in hazard classes 1, 2 and 3 of EN 335-3. 3.4 general purpose use all non-load-bearing applications NOTE e. g. fitments and underlays. 3.5 loading-bearing use use in a load-bearing construction, i.e. an organized assembly of connected parts designed to provide mechanical resistance and
27、 stability to the works. NOTE Also referred to as “structure“. 3.6 load duration class class characterised by the effect of a constant load acting for a certain period of time in the life of the structure NOTE The load duration classes are defined in EN 1995-1-1 (see Table 1). Table 1 Load duration
28、categories Load duration class Order of accumulated duration of characteristic load Examples of loading Permanent more than 10 years self weight Long term 6 months to 10 years storage Medium term 1 week to 6 months imposed load Short term less than one week snow a , wind Instantaneous - accidental l
29、oadingaIn areas which have a heavy snow load for a prolonged period of time, part of the load should be regarded as medium-term. 4 Requirements 4.1 General Softboards shall comply with the general requirements of EN 622-1 together with the relevant requirements set out in 4.2 and 4.3 of this standar
30、d. The requirements in the tables shall be met be 5 percentile values (95 percentile values in the case of swelling in thickness), based on the mean test values for individual panels and calculated in accordance with EN 326-1. In the case of swelling in thickness, they shall be equal to or less than
31、 the values in the tables, and in the case of all other properties, they shall be equal to or greater than the values in the tables. The values in the tables for both bending strength and modulus of elasticity shall apply to test results obtained in any direction in the plane of the panel. With the
32、exception of swelling in thickness, the values given in the tables are characterised by a moisture content in the material corresponding to a temperature of 20 C and a relative humidity of 65 %. The values BS EN 622-4:2009EN 622-4:2009 (E) 6 given for swelling in thickness are characterised by a moi
33、sture content in the material corresponding to a temperature of 20 C and a relative humidity of 65 % before the treatment (immersion in water). The moisture resistance of softboards for use in humid and external conditions (see Tables 3, 4 and 6) is reflected by the respective requirements for swell
34、ing in thickness after 2 h immersion in cold water (according to EN 317). This property as well as the improvement of mechanical resistance of boards use in instantaneous or short-term load-bearing situation is derived from the addition of a hydrophobic substance such as a petrochemical or a natural
35、 substance. 4.2 Requirements for general purpose boards 4.2.1 Requirements for boards for use in dry conditions Table 2 specifies the requirements for general purpose boards for use in dry conditions. Table 2 Requirements for general purpose boards for use in dry conditions (type SB) Property Test m
36、ethod Unit Ranges of nominal thickness (mm) 10 10 to 19 19 to 36 36 Swelling in thickness 2 h EN 317 % 10 10 10 10 Bending strength EN 310 N/mm20,9 0,8 0,8 0,7 4.2.2 Requirements for boards for use in humid conditions Table 3 specifies the requirements for general purpose boards for use in humid con
37、ditions. Table 3 Requirements for general purpose boards for use in humid conditions (type SB.H) Property Test method Unit Ranges of nominal thickness (mm) 10 10 to 19 19 to 36 36 Swelling in thickness 2 h EN 317 % 7 7 7 7 Bending strength EN 310 N/mm21,1 1,0 0,8 0,8 4.2.3 Requirements for boards fo
38、r use in external conditions Table 4 specifies the requirements for general purpose boards for use in external conditions. Table 4 Requirements for general purpose boards for use in exterior conditions (type SB.E) Property Test method Unit Ranges of nominal thickness (mm) 10 10 to 19 19 to 36 36 Swe
39、lling in thickness 2 h EN 317 % 6 6 6 6 Bending strength EN 310 N/mm21,2 1,1 0,9 0,8 BS EN 622-4:2009EN 622-4:2009 (E) 7 4.3 Requirements for load-bearing boards 4.3.1 Requirements for boards for use in dry conditions Table 5 specifies the requirements for load-bearing boards for use in dry conditio
40、ns for instantaneous or short-term load duration only. Table 5 Requirements for load-bearing for use in dry conditions (type SB.LS) Property Test method Unit Ranges of nominal thickness (mm) 10 10 to 19 19 to 36 36 Swelling in thickness 2 h EN 317 % 8 8 8 8 Bending strength EN 310 N/mm21,2 1,1 0,9 0
41、,8 Modulus of elasticity in bending EN 310 N/mm2140 130 100 80 If it is made known by the purchaser that the boards are intended for specific use in flooring, walls or roofing, the relevant performances standard also has to be consulted. This may result in additional requirements having to be compli
42、ed with. 4.3.2 Requirements for boards for use in humid conditions Table 6 specifies the requirements for load-bearing boards for use in humid conditions for instantaneous or short-term load duration only. Table 6 Requirements for load-bearing boards for use in humid conditions (type SB.HLS) Propert
43、y Test method Unit Ranges of nominal thickness (mm) 10 10 to 19 19 to 36 36 Swelling in thickness 2 h EN 317 % 6 6 6 6 Bending strength EN 310 N/mm21,3 1,2 1,0 0,9 Modulus of elasticity in bending EN 310 N/mm2150 140 120 100 If it is made known by the purchaser that the boards are intended for speci
44、fic use in flooring, walls or roofing, the relevant performances standard also has to be consulted. This may result in additional requirements having to be complied with. 5 Verification of compliance 5.1 General Verification of compliance with this European Standard shall be carried out using the te
45、st methods listed in EN 622-1 and in Tables 2, 3, 4, 5, and 6, as appropriated. 5.2 External control 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. BS EN 622-4:2009EN 622-4:200
46、9 (E) 8 5.3 Factory production control Factory production control shall be carried out according to EN 326-2. The properties listed in Tables 2, 3, 4, 5, and 6 and in EN 622-1 shall be controlled, using intervals between tests not exceeding the intervals given in Table 7. Sampling shall be carried o
47、ut at random. Alternative test methods and/or unconditioned test pieces may be used if a valid correlation to the specified test methods can be proven. The intervals between tests given in Table 7 are related to a production under statistical control. Table 7 Maximum intervals between tests for each
48、 production line Property Maximum interval between tests General properties see EN 622-1 All other properties listed in Tables 2, 3, 4, 5 and 6 8 h aaIf several thickness ranges are produced in 8 h, the internal control shall be organized so that at least one board of each thickness range is tested
49、in one weeks production. 6 Marking 6.1 Boards marketed within the European Economic Area for construction applications Boards produced in conformity with this European Standard and marketed in any of the territories of the European Economic Area for use in construction applications as defined in the Construction Products Directive (89/106/EEC) shall be marked according to the requirements of EN 13986. 6.2 Other boards In the case of other boards produced in conformity with this Europ
