1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 13647:2011Wood flooring and woodpanelling and cladding Determination of geometricalcharacteristicsBS EN 13647:2011 BRITISH STANDARDNational forewordThis British Standard is
2、 the UK implementation of EN 13647:2011. Itsupersedes BS EN 13647:2002 which is withdrawn.The UK participation in its preparation was entrusted to TechnicalCommittee B/543, Round and sawn timber.A list of organizations represented on this committee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 pub
3、lication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2011ISBN 978 0 580 69220 8ICS 79.080Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was published under the auth
4、ority of theStandards Policy and Strategy Committee on 30 June 2011.Amendments issued since publicationDate Text affectedBS EN 13647:2011EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 13647 May 2011 ICS 79.080 Supersedes EN 13647:2002English Version Wood flooring and wood panelling and claddin
5、g - Determination of geometrical characteristics Planchers en bois et lambris et bardages en bois - Dtermination des caractristiques gomtriques Holzfubden und Wand- und Deckenbekleidungen aus Holz - Bestimmung geometrischer Eigenschaften This European Standard was approved by CEN on 14 April 2011. C
6、EN 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 national standards may be obtained on ap
7、plication 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 language and notified to the CEN-CENELEC
8、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, Latvia, Lithuania, Luxembourg, Malta, Ne
9、therlands, 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 Brussels 2011 CEN All rights of exploitati
10、on in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 13647:2011: EBS EN 13647:2011EN 13647:2011 (E) 2 Contents Page Foreword 4 Introduction .4 1 Scope 5 2 Normative references 5 3 Terms and definitions .5 4 Principles 5 4.1 General 5 4.2 Dimensions .5 4.3 Angles .
11、5 4.4 Warp 5 4.4.1 Cup 5 4.4.2 Bow .7 4.4.3 Spring 8 4.5 Lipping 9 5 Equipment . 10 5.1 General . 10 5.2 Equipment to measure the dimensions . 10 5.2.1 Calliper . 10 5.2.2 Micrometer . 10 5.2.3 Graduated rule 10 5.3 Equipment to measure angle values 10 5.3.1 General . 10 5.3.2 Equipment for square c
12、ut elements 11 5.3.3 Equipment for mitre-cut elements 11 5.4 Equipment to measure warp 11 5.4.1 Equipment to measure cup 11 5.4.2 Calibration plate 11 5.4.3 Equipment to measure bow and spring . 11 5.4.4 Equipment to measure lipping 11 5.4.5 Conditioning equipment, if relevant . 11 6 Procedure 12 6.
13、1 Dimensions and shape . 12 6.2 Conditioning 12 6.3 Measurement and recording 12 6.4 Dimensions 12 6.4.1 Length and width of the element . 12 6.4.2 Thickness of the element . 12 6.5 Additional dimensions, if relevant 13 6.5.1 Overall dimensions . 13 6.5.2 Depth of the groove 13 6.5.3 Width of the to
14、ngue 13 6.5.4 Thickness of the tongue 14 6.5.5 Width of the groove 14 6.5.6 Undercut 14 6.5.7 Thickness of the upper lip . 14 6.5.8 Thickness above the groove . 14 6.6 Angles 15 6.6.1 Squareness 15 BS EN 13647:2011EN 13647:2011 (E) 3 6.6.2 Mitre cuts 15 6.7 Warp 15 6.7.1 Cup 15 6.7.2 Bow . 16 6.7.3
15、Spring . 16 6.7.4 Lipping 16 7 Expression of results 16 7.1 Dimensions 16 7.1.1 Length and width of the element . 16 7.1.2 Thickness of the element 16 7.2 Additional dimensions, if relevant . 17 7.2.1 Overall dimensions . 17 7.2.2 Depth of the groove . 17 7.2.3 Width of the tongue . 17 7.2.4 Undercu
16、t . 17 7.2.5 Thickness of the tongue . 17 7.2.6 Width of the tongue . 17 7.2.7 Thickness of the upper lip 17 7.2.8 Thickness above the groove 17 7.3 Angle measurement 17 7.3.1 Squareness 17 7.3.2 Mitre cuts 18 7.4 Warp 18 7.4.1 Cup 18 7.4.2 Bow . 18 7.4.3 Spring . 18 7.4.4 Lipping 18 8 Test report 1
17、8 Annex A (informative) Apparatus for square cut elements 19 Annex B (normative) Test rig to measure cup . 20 BS EN 13647:2011EN 13647:2011 (E) 4 Foreword This document (EN 13647:2011) has been prepared by Technical Committee CEN/TC 175 “Round and sawn timber”, the secretariat of which is held by AF
18、NOR. 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 the latest by November 2011. Attention is drawn to the possibility that
19、 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 13647:2002. Compared with EN 13647:2002, the following modifications have been made: a) In 6.2, the
20、NOTE has been completed, b) 6.3 has been improved, c) New presentation of 6.5, d) New figures for 6.5.2 “Depth of the groove“ , e) New figures for 6.5.3 “Width of the tongue“, f) New figures for “undercut“ g) Adding of accuracy of “length and width of the element“ in 7.1.1, h) New values of “bow“, i
21、n 7.4.2, i) New values of “spring“ in 7.4.3 According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France
22、, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Introduction This document is one of a series of standards specifying requirements and tes
23、t methods for wood flooring and wood panelling and cladding. The measurements should be carried out as specified in this standard or with any other equipment or principles giving at least the same accuracy. BS EN 13647:2011EN 13647:2011 (E) 5 1 Scope This European Standard specifies methods of measu
24、ring the geometrical characteristics of wood flooring and wood panelling and cladding elements. This European Standard does not specify sampling, which is intended to be found in the product standards or test methods and it does not apply to elements which are installed. 2 Normative references The f
25、ollowing referenced documents are 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 13756:2002, Wood flooring Terminology 3 Terms and d
26、efinitions For the purposes of this document, the terms and definitions given in EN 13756:2002 apply. 4 Principles 4.1 General The measurements shall be carried out only if relevant, taking the product standards into account. 4.2 Dimensions The dimensions are determined by measuring any characterist
27、ic defined in the product standard and with appropriate tools. 4.3 Angles Determine square angles by measuring the distance (maximum value) between an edge of the element and the side of a square whose other side is in line with an adjacent edge of the element. Determine other angles by the use of a
28、 protractor. 4.4 Warp 4.4.1 Cup Determine cup by measuring, at the middle of the width of the element, the distance separating the face of the element from the straight reference line joining the top arises of the edges of the element, see Figures 1 and 2. BS EN 13647:2011EN 13647:2011 (E) 6 Key 1 W
29、idth 2 Face 3 Cup 4 Cross section 5 Reference line Figure 1 Example of convex cup Key 1 Width 2 Face 3 Cup 4 Cross section 5 Reference line Figure 2 Example of concave cup BS EN 13647:2011EN 13647:2011 (E) 7 4.4.2 Bow Determine bow by measuring, at the middle of the length of the element, the distan
30、ce separating the face of the element from the straight reference line joining the end top arises of the element, see Figures 3 and 4. NOTE If the maximum bow is not in the middle of the length, the measurement can be carried out at the appropriate place and this should be mentioned in the report. K
31、ey 1 Length 2 Face 3 Bow 4 Edge 5 Thickness 6 Reference line NOTE For practical reasons convex bow may be measured in the same way on the back of the element. Figure 3 Example of convex bow BS EN 13647:2011EN 13647:2011 (E) 8 Key 1 Length 2 Face 3 Bow 4 Edge 5 Thickness 6 Reference line Figure 4 Exa
32、mple of concave bow 4.4.3 Spring Determine spring by measuring, at the middle of the length of the element, along the lengthwise edges of the element, the distance separating one edge from the straight reference line joining the two arises of that edge, see Figure 5. NOTE The measurement is usually
33、carried out on the edge bearing the groove. BS EN 13647:2011EN 13647:2011 (E) 9 Key 1 Length 2 Face 3 Spring 4 Reference line 5 Width Figure 5 Example of spring (element viewed from above) 4.5 Lipping Determine lipping by measuring the difference in the levels of the face of two adjacent elements wh
34、en they are assembled together, see Figure 6. BS EN 13647:2011EN 13647:2011 (E) 10 Key 1 lipping Figure 6 Example of lipping 5 Equipment 5.1 General The equipment specified in this standard is given as an indication. Any other equipment providing the same results with at least the same accuracy may
35、be used. 5.2 Equipment to measure the dimensions 5.2.1 Calliper It shall have an accuracy of 0,05 mm. If used to measure the characteristics of tongue and groove profiles, it shall have a built-in depth rod. It shall also have a useful measuring length corresponding to the width of the elements to b
36、e measured. 5.2.2 Micrometer It shall have a limit deviation of 0,05 mm and two parallel flat circular feelers having a diameter of (10 1) mm. 5.2.3 Graduated rule It shall be used when the dimensions to be measured are out of the callipers range. It shall have a limit deviation of 0,5 mm up to a le
37、ngth of 2 m, and 1 mm for longer lengths. 5.3 Equipment to measure angle values 5.3.1 General The design of the equipment shall be such as to allow the measurement as close as possible to the face of the element and preferably on the groove side if the element is tongued and grooved. BS EN 13647:201
38、1EN 13647:2011 (E) 11 5.3.2 Equipment for square cut elements A reference square with its longer arm consistent with the length of the elements to be checked and shall not be less than 210 mm, Each arm shall have a fixed feeler at about 10 mm from the corner, The longer arm shall have a second feele
39、r, adjustable between 200 mm and 300 mm from the fixed feeler, The shorter arm shall have a gauge, readable to the nearest 0,01 mm, adjustable to the width of the element to be controlled. NOTE an example of such a square is shown in Figure A.1 A calibration square to set the gauge to 0. 5.3.3 Equip
40、ment for mitre-cut elements Protractor fitted with a vernier with a limit a limit deviation of 1 min of angle. 5.4 Equipment to measure warp 5.4.1 Equipment to measure cup A gauge with an accuracy of 0,01 mm with a rounded tip with a radius of (5 0,2) mm, installed centrally in relation to the three
41、 rounded supports with a radius not less than 5 mm. This shall be adjustable along a T assembly of bars according to the gauge length to be achieved. The tip of the gauge in contact with the face of the element shall apply a force of less than 5 N 1) Figure B.1 gives an example of such a device and
42、Figure B.2 shows gauging of the device. 5.4.2 Calibration plate A reference plate of suitable material to calibrate to zero the gauge fitted on the apparatus defined in 5.4.1. 5.4.3 Equipment to measure bow and spring A straight ruler at least as long as the actual element and a gauge readable to th
43、e nearest 0,5 mm regarding bow and 0,1 mm regarding spring. 5.4.4 Equipment to measure lipping A feeler gauge readable to the nearest 0,05 mm. 5.4.5 Conditioning equipment, if relevant An enclosure capable of maintaining the following conditions: Climate A, defined by a relative humidity of (65 5) %
44、 and a temperature of (20 2) C or Climate B, defined by a relative humidity of (50 5) % and a temperature of (23 2) C. 1) The weight of the apparatus should not change the cup of the element beyond the limit of the accuracy of the gauge. BS EN 13647:2011EN 13647:2011 (E) 12 6 Procedure 6.1 Dimension
45、s and shape Measure the element in its delivered size at the reference moisture content given in the product standards or, if there is no product standard, at a given reference moisture content. 6.2 Conditioning If specified, condition the element in one of the standard climates, defined in 5.4.5, t
46、o constant mass prior to measurement. NOTE Constant mass is considered to be reached when the results of two successive weighing operations carried out at an internal of 24 h, do not differ by more than 0,1 % of the mass of the element. 6.3 Measurement and recording Proceed as follows with the metho
47、d of measurement and record the results every time. Mark all position of measurements on the element. When there is a doubt about a measurement or the value is outside the limits, proceed immediately as follows: carry out two other measurements at 5 mm on each side of the point where the first measu
48、rement was just taken. Average the three measurements. 6.4 Dimensions 6.4.1 Length and width of the element 6.4.1.1 For rectangular or square elements With the calliper defined in 5.2.1 or, if it is out of its range, with the equipment defined in 5.2.3, measure length and width along two lines paral
49、lel to the arises as they are seen when the element is assembled. The lines of measurement shall be within 5 mm to 10 mm from edges. If the span between the edges exceeds 500 mm, one measurement shall be made, in addition, along a central line. Mark all positions of measurements on the element. 6.4.1.2 For other elements Make the measurements with one of the equipment defined in 5.2. Mark all positions of measurements on the element. Measure the length along the long edges between two adjacent angles (two measurements). Measure the width perpendicularly to t
