1、STD.BS1 BS EN 12775-ENGL 2001 Lb24669 OB77IIL 070 811 BRITISH STANDARD Solid wood panels - Classification and terminology The European Standard EN 12775:2001 has the status of a British Standard ICs 79.060.99 BS EN 12775:2001 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW STD
2、mBSI BS EN L2775-ENGL 2001 I 1b24hb9 08977232 TO7 BS EN 12775:2001 Amd. No. National foreword Date Comments This British Standard is the official English language version of EN 127752001. The UK participation in its preparation was entrusted to Technical Committee B/541, Wood-based panels, which has
3、 the responsibility to: - - aid enquirers to understand 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
4、 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 Standards Catalogue under the section entitled “Interna
5、tional Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a Br
6、itish Standard does not of itself confer immunity from legal obligations. This British Standard, having been prepared under the direction of the Sector Committee for Building and Civil Engineering, was published under the authority of the Standards Committee and comes into effect on 15 March 2001 Su
7、mmary of pages This document comprises a front cover, an inside front cover, the EN title page, pages 2 to 7 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication O BSI 03-2001 ISBN O 680 37066 9 STD-BSI B
8、S EN 12775-ENGL 2001 II 2624669 0897703 943 8 EUROPEAN STANDARD EN 12775 NORME EUROPENNE EUROPISCHE NORM January 2001 ICs 01.040.79: 79.060.99 English version Solid wood panels - Classification and terminology Bois panneauts - Classification et terminologie Massivholzplatten - Klassifizierung und Te
9、rminologie This European Standard was approved by CEN on 1 January 2001. CEN members are bound to comply with the CENEENELEC 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 bibliograp
10、hical 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 language made by translation under the responsibility of a CEN
11、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, Iceland, Ireland, Italy, Luxembourg, Netherlands, Notway, Por
12、tugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMTiEE FOR STANDARDIZATION COMITE EUROPEEN DE NORMALISATION EUROPISCHES KOMITEE FUR NORMUNG Management Centre: rue de Stassart, 36 8-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide fo
13、r CEN national Members. Ref. No. EN 12775:2001 E STD-BSI BS EN 12775-ENGL 2001 M Lb24bb7 O897704 88T m Page 2 EN 12775:2001 Contents Page Page Foreword . 1 scope 2 Normative references . 3 Classification 3.1 3.2 3.3 According to their surface condition 3.4 According to the composition of the panel A
14、ccording to their principal characteristics According to the ultimate user requirements 4 4.1 4.2 4.3 4.4 4.5 4.6 4.7 4.8 Terms and definitions relating to Solid wood panel Large-sized panel . Medium-sized panel . Panel cut to size Length of panel . Width of panel Face solid wood panels Layer 2 4.9
15、Back 5 4.10 Strip . 5 3 4.11 Board 6 4.12 Lamella 6 3 4.13 Blank 6 4.14 Plank 6 3 4.15 Structure of wood . 6 3 4.16 Narrow-ringed wood . 6 3 4.17 Wide-ringed wood . 6 4 4.18 Straight-grain wood 6 4 4.19 Presence of knots . 6 4.20 Black knot 6 4.21 Patch 6 4 4.22 Natural plug . 7 4 4.23 Serial pluggi
16、ng . 7 4 4.24 Chemical patching . 7 5 4.25 Worm hole 7 5 4.26 Fungal attack 7 5 4.27 Fine-sawntimber 7 5 4.28 Sandedtimber . 7 5 4.29 Endjoint 7 5 4.30 Simple butt 7 Foreword This European Standard has been prepared by Technical Committee CENTTC 112 “Wood-based panels“. the secretariat of which is h
17、eld 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 July 2001. and conflicting national standards shall be withdrawn at the latest by July 2001 . According to the CEWCENELEC Internal Regu
18、lations. the national standards organizations of the following countries are bound to implement this European Standard: Austria. Belgium. Czech Republic. Denmark. Finland. France. Germany. Greece. Iceland. Ireland. Italy. Luxembourg. Netherlands. Norway. Portugal. Spain. Sweden. Switzerland and the
19、United Kingdom . No existing European Standard is superseded . Page 3 EN 127752001 STD-BSI BS EN 12775-ENGL 2OOL 111 Lb24661 0897705 716 sl 1 Scope This European standard gives a classification for solid wood panels and defines terms used with solid wood panels. 2 Normative references This European
20、Standard incorporates, by dated or undated reference, provisions from other publications. These normative 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 app
21、ly to this European Standard only when incorporated in it by amendment or revision. For undated references, the latest edition of the publication referred to applies (including amendments). EN 844-3 Round and sawn timber - Terminology - Part 3: General terms relating to sawn timber EN 844-7 Round an
22、d sawn timber - Terminology - Part 7: Terms relating to anatomical structure of timber EN 844-9 Round and sawn timber - Terminology - Part 9: Terms relating to features of sawn timber EN 844-10 Round and sawn timber - Terminology - Part 10: Terms relating to stain and fungal attack EN 844-11 Round a
23、nd sawn timber - Terminology - Part 11: Terms relating to degrade by insects 3 Classification 3.1 According to the composition of the panel a) Single-layer panels b) Multi-layer panels 3.2 According to their principal characteristics 3.2.1 According to their conditions of use a) Panels for use in dr
24、y conditions b) Panels for use in humid conditions c) Panels for use in exterior conditions 3.2.2 According to their mechanical properties a) Panels for general purposes b) Panels for structural uses 3.2.3 According to their surface appearance 3.2.3.1 According to the group of wood species in the ou
25、ter layer a) Softwood panels b) Hardwood panels STDmBSI BS EN LS775-ENGL 2001 H 1b24bb9 0697706 b52 Page 4 EN 12775:2001 3.2.3.2 According to the length of pieces in the outer layer a) Panels with pieces cut to length (“SC“ - showing cuts). b) Panels with pieces not cut to length (“NC - no cuts) 3.3
26、 According to their surface condition a) Raw panels b) Sanded panels c) Panels with textured surfaces d) Finished panels (e.g. overlaid, coated, primed, varnished, oil treated) 3.4 According to the ultimate user requirements 4 Terms and definitions relating to solid wood panels For the purpose of th
27、is standard, the terms and definitions given in EN 844-3, EN 844-7, EN 844-9, EN 844-10 and EN 844-1 1 and the following apply. NOTE blanks, strips or planks. In the following definitions “pieces of timber“ means timber in the form of boards, lamellas, 4.1 Solid wood panel Panel that consists of pie
28、ces of timber glued edge-to-edge and, if multi-layer, face-to-face. 4.1.1 Single-layer solid wood panel Solid wood panel, consisting of several pieces of timber which are glued together to form one layer. 4.1.1.1 Solid wood panel with pieces cut to length Solid wood panel with pieces of timber which
29、 show cuts across their length and, as a nile, are glued together at their ends or finger-jointed (Type “SC“). 4.1.1.2 Solid wood panel with pieces not cut to length Solid wood panel consisting of pieces of timber which are undivided for the full length of the panel (Type “NC). 4.1.2 Multi-layer sol
30、id wood panel Solid wood panel, consisting of two outer layers with their grain direction running parallel and at least one inner layer with its grain direction at 90“ to the outer layers. 4.2 Large-size panel Panel with dimensions equal to or greater than 3 m in length and equal to or greater than
31、1 m in width. STD.BSI BS EN L2775-ENGL ZUOL lh24bb9 0897707 519 8 Page 5 EN 127752001 4.3 Medium-sized panel Panel with dimensions less than 3 m in length or less than 1 m in width. 4.4 Panel cut to size Panel which conforms to the size specified by the purchaser. 4.5 Length of panel The panel dimen
32、sion in the direction of the grain of the outer layers. 4.6 Width of panel The panel dimension at right angles to the length 4.7 Layer Flat composition of pieces of timber which can be glued edge-to-edge and eventually end-to-end. 4.7.1 Outer layer Outside stratum of a multi-layer solid wood panel.
33、4.7.2 Inner layer Any stratum of a multi-layer solid wood panel which is not an outer layer. 4.7.3 Middle layer Central stratum of a multi-layer solid wood panel. 4.8 Face The surfaces which fall in the better appearance class. NOTE back. If both surfaces fall in the same class, the panel can be con
34、sidered to having two faces and no 4.9 Back The surface of the panel which falls in the lower appearance class (compared to the face). 4.10 Strip Piece of sawn timber of longish form, less than 40 mm in thickness and less than 80 mm in width. 4.11 Board Piece of sawn timber of longish form, less tha
35、n 40 mm in thickness (but not less than 10 mm thick) and more than 80 mm in width. 4.12 Lamella Piece of sawn timber of longish form between 3 mm and 10 mm in thickness and of 25 mm or more in width. 4.13 Blank Piece of sawn timber of longish form which is more than 40 mm in thickness and not exceed
36、ing 80 mm in width. 4.14 Plank Piece of sawn timber of longish fom which is 40 mm or more in thickness and more than 80 mm in width. 4.15 Structure of wood Anatomic composition of wood, determined by the size and type of cells, pores and the width and regularity of growth rings. 4.16 Narrow-ringed w
37、ood Wood with close growth rings. With softwood species, the wood is narrow-ringed if it has an average of 6 or more growth rings per 1 cm over the whole cross section. 4.17 Wide-ringed wood Wood with large growth rings. Wood is wide-ringed if the average width of the growth rings (measured radially
38、 at the cross section) exceeds 6 mm. 4.18 Straight-grain wood Wood with a slope of grain of less than 2 cm/m. 4.19 Presence of knots Tem which describes the existence of knots in a piece of timber. 4.20 Black knot Unsound knot or dead knot with black discolouration at the whole or in patt (ring-shap
39、ed) of its cross-section. 4.21 Patch Small flat piece of wood used for inserting into a piece of sawn timber, or a solid wood panel, to replace visible parts of features such as knots or defects. STD*BSI BS EN 12775-ENGL 2001 M Lb24669 0897709 3bL Page 7 EN 127752001 4.22 Natural plug Plug which has
40、 been produced from a natural branch and therefore shows the complete circular growth rings across its surface. 4.23 Serial-plugging Insertion of plugs separated by a distance less than their individual width or even overlapping. 4.24 Chemical patching Defect filled with a chemical compound. 4.25 Wo
41、rm hole Borehole in wood with a diameter of more than 2 mm. 4.26 Fungal attack Discolouration and/or structural alteration of wood by the attack of wood-destroying or wood-discolouring fungi. 4.27 Fine-sawn timber Timber which has been worked with a fine cut circular saw or fine-cut band saw in such
42、 a way that the rough- ness depth does not exceed 0,5 mm. 4.28 Sanded timber Timber which has been finished by machine with sanding belts. 4.29 End joint Connection of two pieces of timber end-to-end either by glueing (finger or butt-jointed) or by mechanical fasteners (e.g. corrugated fasteners). 4
43、.30 Simple butt Jointing of two pieces of timber without glued or mechanical connection. BS EN 12775:ZOOl BSI 389 Chiswick High Road London w4 4ATA STD-BSI ES EN 12775-ENGL 2001 I 1b24bb9 0897710 083 m BSI - British Standards Institution BSI is the independent national body responsible for preparing
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