1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13228:2011Wood flooring Solid woodoverlay flooring elementsincluding blocks with aninterlocking systemBS EN 13228:2011 BRITISH STANDARDNational forewordThis British Standar
2、d is the UK implementation of EN 13228:2011. Itsupersedes BS EN 13228:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/543, Round and sawn timber.A list of organizations represented on this committee can beobtained on request to its secretary.This
3、 publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 69221 5ICS 79.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the
4、authority of theStandards Policy and Strategy Committee on 30 June 2011.Amendments issued since publicationDate Text affectedBS EN 13228:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13228 May 2011 ICS 79.080 Supersedes EN 13228:2002English Version Wood flooring - Solid wood overlay floor
5、ing elements including blocks with an interlocking system Plancher en bois - Elments de parquets en bois massifs de recouvrement, blocs anglais compris, avec systmes de guidage Holzfubden - Massivholz-Overlay-Parkettstbe einschlielich Parkettblcke mit einem VerbindungssystemThis European Standard wa
6、s approved by CEN on 14 April 2011. 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 nat
7、ional standards may be obtained on application to the CEN-CENELEC 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 translation under the responsibility of a CEN member into its own lang
8、uage and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Lat
9、via, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Bruss
10、els 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13228:2011: EBS EN 13228:2011EN 13228:2011 (E) 2 Contents Page Foreword 3 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .6 4 Symbols and abbrevia
11、tions 6 5 Specific product requirements .7 5.1 Wood species .7 5.2 Appearance 7 5.2.1 General rules 7 5.2.2 Rules for the most commonly used species 8 5.2.3 Free class 14 5.2.4 Natural colours 14 5.3 Moisture content . 14 5.4 Geometrical characteristics . 14 5.4.1 General . 14 5.4.2 Profile . 14 5.4
12、.3 Nominal dimensions . 16 5.4.4 Limit deviations . 17 5.4.5 Machining 18 5.5 Technical specifications and properties 18 5.5.1 Technical characteristics required when in service . 18 5.5.2 Appearance . 18 5.5.3 Renovation and repair 18 6 Marking 19 Annex A (informative) Botanical and trade names of
13、the most commonly used species for wood flooring (hardwood and softwood species) . 20 Annex B (normative) Principles for the classification of the free class . 26 Bibliography . 28 BS EN 13228:2011EN 13228:2011 (E) 3 Foreword This document (EN 13228:2011) has been prepared by Technical Committee CEN
14、/TC 175 “Round and sawn timber”, the secretariat of which is held by AFNOR. 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 November 2011, and conflicting national standards shall be withdrawn at
15、the latest by November 2011. 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 identifying any or all such patent rights. This document supersedes EN 13228:2002. In this European
16、Standard the Annex A is informative and Annex B is normative. Compared with EN 13228:2002, the following modifications have been made: a) Modification of the 2ndsentence of the scope; b) Modification of dimensional characteristics of overlay flooring element (5.4.2.2); c) Editorial modification on r
17、ow 7 of Table 8 of 5.4.4.1; d) Modification of limit deviation of cup (5.4.4.3), bow (5.4.4.4), spring (5.4.4.5); e) Deletion of “specific site requirements“ (5.5.2); f) Updating of Clause 2 “Normative references“ and bibliography. According to the CEN/CENELEC Internal Regulations, the national stan
18、dards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
19、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 13228:2011EN 13228:2011 (E) 4 Introduction This standard is one of a series of standards about wood flooring and wood panelling and cladding. This standard specifies the characteristics of solid w
20、ood flooring elements. It is based upon current dimensional standards used in the industry and other characteristics together with functions which have been verified by test. A large amount of knowledge exists about solid wood flooring elements and values for product characteristics are attested by
21、long use and experience. It is therefore not necessary to have test results. For new products technical data will have to be verified by testing. The appearance of the wood flooring is mainly influenced by species, classification and the pattern. BS EN 13228:2011EN 13228:2011 (E) 5 1 Scope This Euro
22、pean Standard specifies the characteristics of solid wood overlay flooring including blocks with an interlocking system for internal use as flooring. It applies to elements. This standard covers elements with and without surface coating. 2 Normative references The following referenced documents are
23、indispensable 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 844-1:1995, Round and sawn timber Terminology Part 1: General terms common to round t
24、imber and sawn timber EN 844-3:1995, Round and sawn timber Terminology Part 3: General terms relating to sawn timber EN 844-4:1997, Round and sawn timber Terminology Part 4: Terms relating to moisture content EN 844-6:1997, Round and sawn timber Terminology Part 6: Terms relating to dimensions of sa
25、wn timber EN 844-9:1997, Round and sawn timber Terminology Part 9: Terms relating to features of sawn timber EN 844-10:1998, Round and sawn timber Terminology Part 10: Terms relating to stain and fungal attack EN 844-11:1998, Round and sawn timber Terminology Part 11: Terms relating to degrade by in
26、sects EN 844-12:2000, Round and sawn timber Terminology Part 12: Additional terms and general index EN 1310:1997, Round and sawn timber Method of measurement of features EN 1311, Round and sawn timber Method of measurement of biological degrade EN 1534, Wood flooring Determination of resistance to i
27、ndentation Test method EN 13183-1, Moisture content of a piece of sawn timber Part 1: Determination by oven dry method EN 13183-2, Moisture content of a piece of sawn timber Part 2: Estimation by electrical resistance method EN 13647, Wood flooring and wood panelling and cladding Determination of ge
28、ometrical characteristics EN 13756:2002, Wood flooring Terminology BS EN 13228:2011EN 13228:2011 (E) 6 3 Terms and definitions For the purposes of this document, the terms and definitions given in EN 844-1:1995, EN 844-3:1995, EN 844-4:1997, EN 844-6:1997, EN 844-9:1997, EN 844-10:1998, EN 844-11:19
29、98, EN 844-12:2000 and in EN 13756:2002 and the following apply: 3.1 block element with an interlocking system NOTE It is defined by the relevant dimensional limits in 5.4.3 and Tables 7 and 8. 3.2 overlay flooring element element with an interlocking system with a thickness which renders it suitabl
30、e for laying on a continuous supporting surface EN 13756:2002 3.3 interlocking system system of assembly based upon a male and a female profile that does not have a load-bearing function, allowing the positioning of elements during installation EN 13756:2002 3.4 thickness above the groove thickness
31、between the face and any discontinuity such as a change in the profile (excluding chamfering), a groove/glue pocket or a glue line (excluding the glue line of finger-joints) EN 13756:2002 4 Symbols and abbreviations L Length of the face of the element b Width of the face of the element b1Depth of th
32、e female profile b2Width of the male profile b3Undercut t Thickness between the face and the back of the element t1Thickness above the groove t2Width of the female profile t3Thickness of the male profile t4Thickness of the part below the male profile Angle that an edge makes to a plane normal to adj
33、acent face, in degrees BS EN 13228:2011EN 13228:2011 (E) 7 5 Specific product requirements 5.1 Wood species A list of the most commonly used species for wood flooring elements as described in this standard is given in Annex A. 5.2 Appearance 5.2.1 General rules Tables 1 to 6 define the classificatio
34、n relating to appearance rules for the face and for the non-visible parts (back and edges) of an element of the most commonly used species for solid wood flooring as defined in this standard. Features shall be measured according to EN 1310 (knots assessed according to the general method of 4.1 in EN
35、 1310:1997). Bio deterioration is measured according to EN 1311. A classification with three appearance classes is specified, designated null, and null. A classification named “Free class“ is based on the principles laid out in Annex B. To allow for unavoidable classification differences, 3 % of the
36、 strips in a batch may be other classes. Any additional strips from other classes are allowed as long as the general impression of the floor is not disturbed. The face shall include all the visible surface of the element. It shall therefore extend to the chamfering1)if any. The face shall be free fr
37、om shake and the wood shall be sound. Any continuous glue joint which allows renovation without significantly changing the appearance or the functional characteristics is acceptable. 1) The chamfering is visible when elements are assembled. BS EN 13228:2011EN 13228:2011 (E) 8 5.2.2 Rules for the mos
38、t commonly used species 5.2.2.1 Quercus spp. (oak) Rules for oak are given in Table 1. Table 1 Classification for Quercus spp. (oak) Face of the element Features Class null null Sound sapwood Not permitted Permitted Slight traces permitted Knots Sound and intergrown Unsound knots Permitted if: diame
39、ter 2 mm Not permitted Permitted if: diameter 5 mm diameter 3 mm Permitted if: diameter 15 mm diameter 10 mm Checks Not permitted Permitted up to 15 mm in length All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring.
40、Bark pockets Not permitted Not permitted Lightning shake Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Colour variation Slight variation permitted Permitted aMedullary ray Permitted Permitted Biodeterioration Not permitted Not permitted Not permitted, except blue
41、 stain and black holes Non-visible parts All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Sound sapwood is permitted from the back up to the upper part of the male profile of the interlocking system without taki
42、ng into account the limits set for the face. aBrown oak. BS EN 13228:2011EN 13228:2011 (E) 9 5.2.2.2 Fraxinus excelsior (European ash) and Acer spp. (maple) Rules for European ash and maple are given in Table 2. Table 2 Classification for Fraxinus excelsior (European ash) and Acer spp. (maple) Face
43、of the element Features Class null null Sound sapwood Not applicable Not applicable Not applicable Knots Sound and intergrown b 70 mm b 70 mm Unsound knots Permitted if: diameter 2 mm diameter 3 mm Not permitted Permitted if: diameter 5 mm diameter 10 mm diameter 3 mm Permitted if: diameter 15 mm di
44、ameter 30 mm diameter 10 mm Checks Not permitted Not permitted Not permitted Bark pockets Not permitted Not permitted Not permitted Lightning shake Not permitted Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Permitted, no limit Colour variation Slight variation p
45、ermitted. Slight traces of natural discoloration (mineral lines) permitted. Permitted Permitted Stick marks Not permitted Permitted Permitted Biodeterioration Not permitted Not permitted Not permitted, except blue stain and black holes Non-visible parts All features permitted without limit to size o
46、r quantity if these do not impair the strength or the wearing quality of the wood flooring. BS EN 13228:2011EN 13228:2011 (E) 10 5.2.2.3 Fagus sylvatica (European beech) Rules for European beech are given in Table 3. Table 3 Classification for Fagus sylvatica (European beech) Face of the element Fea
47、tures Class null null Sound sapwood Not applicable Not applicable Not applicable Knots Sound and intergrown b 70 mm b 70 mm Unsound knots Permitted if: diameter 2 mm diameter 3 mm Not permitted Permitted if: diameter 5 mm diameter 10 mm diameter 3 mm Permitted if: diameter 15 mm diameter 30 mm diame
48、ter 10 mm Checks Not permitted Not permitted Not permitted Bark pockets Not permitted Not permitted Not permitted Lightning shake Not permitted Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Permitted, no limit Colour variation Slight variation permitted a. Slight
49、 traces of natural discoloration permitted. Permitted Permitted Red heart Not permitted Permitted Permitted Stick marks Not permitted Permitted Permitted Medullary ray Permitted Permitted Permitted Biodeterioration Not permitted Not permitted Not permitted, except blue stain and black holes Non-visible parts All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. aPermitted for
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