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STANDARDSIST EN 13226:20031DGRPHãþD
SIST EN 13226:2009
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 13226May 2009ICS 79.080Supersedes EN 13226:2002
English VersionWood flooring - Solid parquet elements with grooves and/ortonguesPlanchers en bois - Eléments de parquet massif avecrainures et/ou languettesHolzfußböden - Massivholz-Elemente mit Nut und/oderFederThis European Standard was approved by CEN on 24 April 2009.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards 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, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech 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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre:
Avenue Marnix 17,
B-1000 Brussels© 2009 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 13226:2009: ESIST EN 13226:2009
EN 13226:2009 (E) 2 Contents Page Foreword .3 Introduction .4 1 Scope .5 2 Normative references .5 3 Terms and definitions .6 4 Symbols and abbreviations .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 .7 5.2.3 Free class . 17 5.2.4 Natural colours . 17 5.3 Moisture content . 17 5.4 Geometrical characteristics . 17 5.4.1 General . 17 5.4.2 Nominal dimensions . 19 5.4.3 Limit deviations . 20 5.4.4 Machining . 22 5.5 Technical specifications and properties . 22 5.5.1 Technical characteristics required when in service . 22 5.5.2 Specific site requirements . 22 5.5.3 Appearance . 22 5.5.4 Renovation and repair . 22 6 Marking . 23 Annex A (informative)
Botanical and trade names of the most commonly used species for wood flooring (hardwood and softwood species) . 24 Annex B (normative)
Principles for the classification of the free class . 30 Bibliography . 32
SIST EN 13226:2009
EN 13226:2009 (E) 3 Foreword This document (EN 13226:2009) has been prepared by Technical Committee CEN/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 2009, and conflicting national standards shall be withdrawn at the latest by November 2009. 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 13226:2002. Compared to EN 13226:2002, the following changes have been made: a) New limit deviations for nominal width of the element (5.4.3.1), b) New value for cup (5.4.3.3), c) New value for spring (5.4.3.5), d) Modifications regarding the marking (Clause 6). 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, Cyprus, Czech 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 the United Kingdom. SIST EN 13226:2009
EN 13226:2009 (E) 4 Introduction This European Standard is one of a series of standards concerning wood flooring and wood panelling and cladding. This standard specifies the characteristics of solid parquet elements. It is based upon current dimensional standards within the industry and other characteristics together with functions which have been verified by test. A large amount of knowledge exists about solid parquet elements and values for product characteristics are attested by 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 parquet is mainly influenced by species, classification and the pattern. SIST EN 13226:2009
EN 13226:2009 (E) 5 1 Scope This European Standard specifies the characteristics of solid parquet elements with grooves and/or tongues for internal use as flooring. This standard is not applicable to panels made from elements for which a separate standard is in course of preparation. This standard covers elements with or without surface treatment. 2 Normative references The following 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 844-1:1995, Round and sawn timber – Terminology – Part 1: General terms common to round timber 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 sawn timber EN 844-7:1997, Round and sawn timber – Terminology – Part 7: Terms relating to anatomical structure of 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 insects 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 and parquet flooring – Determination of resistance to indentation (Brinell) – 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 13756:2002, Wood flooring – Terminology SIST EN 13226:2009
EN 13226:2009 (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 844-7:1997, EN 844-9:1997, EN 844-10:1998, EN 844-11:1998, EN 844-12:2000 and in EN 13756:2002 and the following apply. 3.1 left-handed strip element having the end tongue on the left when viewed on the face with the edge tongue directed towards the observer
[EN 13756:2002] 3.2 right-handed strip element having the end tongue on the right when viewed on the face with the edge tongue directed towards the observer
[EN 13756:2002] 3.3 thickness above the groove thickness 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; b1 Depth of the groove; b2 Width of the tongue; b3 Undercut; t Thickness between the face and the back of the element; t1 Thickness above the groove; t2 Width of the groove; t3 Thickness of the tongue; t4 Thickness of the part below the tongue; t5 Depth of optional glue pocket; a Slope of the upper lip; α Arrow tail; ß Slope of the under lip. SIST EN 13226:2009
EN 13226:2009 (E) 7 5 Specific product requirements 5.1 Wood species A list of the most commonly used species for parquet elements as described in this standard is given in Annex A. 5.2 Appearance 5.2.1 General rules Tables 1 to 9 define the classification 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 1310:1997). Biodeterioration is measured according to EN 1311. A classification with three appearance classes is specified, designated {, ∆∆∆∆ and …. A classification named "Free class" is based on the principles laid out in Annex B. 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 from 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. 5.2.2 Rules for the most commonly used species 5.2.2.1 Quercus spp. (oak) Rules for oak are given in Table 1.
1) The chamfering is visible when elements are assembled. SIST EN 13226:2009
EN 13226:2009 (E) 8
Table 1 — Classification for Quercus spp. (oak) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not permitted Permitted. Slight traces permitted Knots
Sound and intergrown Permitted if: diameter ≤ 8 mm Permitted if: diameter ≤ 10 mm All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Unsound knots diameter ≤ 1 mm diameter ≤ 5 mm Checks Not permitted Permitted up to 15 mm in length 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 Permitteda
Medullary ray 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. Sound sapwood is permitted from the back up to the upper part of the tongue without taking into account the limits set for the face. a Brown oak.
SIST EN 13226:2009
EN 13226:2009 (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 of the element
Features Class { ∆∆∆∆ … Sound sapwood Not applicable Not applicable Not applicable Knots
Sound and intergrown Permitted if: diameter ≤ 2 mm Permitted if: diameter ≤ 10 mm All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Unsound knots diameter ≤ 1 mm diameter ≤ 5 mm Checks Not permitted Permitted up to 15 mm in length 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. Slight traces of natural discoloration and mineral lines permitted. Permitted Stick marks Not 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.
SIST EN 13226:2009
EN 13226:2009 (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
Features Class { ∆∆∆∆ … Sound sapwood Not applicable Not applicable Not applicable Knots
Sound and intergrown Permitted if: diameter ≤ 2 mm Permitted if: diameter ≤ 10 mm All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Unsound knots diameter ≤ 1 mm diameter ≤ 5 mm Checks Not permitted Permitted up to 15 mm in length 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 a. Slight traces of natural discoloration permitted. Permitted Red heart Not permitted Permitted Stick marks Not permitted Permitted Medullary ray 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. a Permitted for steamed beech.
SIST EN 13226:2009
EN 13226:2009 (E) 11 5.2.2.4 Pinus pinaster (maritime pine) Rules for maritime pine are given in Table 4. Table 4 — Classification for Pinus pinaster (maritime pine) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Permitted Permitted Permitted Knots
Sound and intergrown
Permitted if
diameter ≤ 2 mma .
35 mm knots permitted with slight checks b, if not grouped together a. If grouped together, their total area c shall not exceed the representative area of one 35 mm diameter knot. No limit in diameter. Slight torn surface permitted. Knots holes or loose knots not permitted Unsound knots Not permitted Permitted if
diameter ≤ 15 mm Resin pockets and traces of pith Length ≤ 10 mm permitted Length ≤ 70 mm permitted Resin pockets are only permitted if the hole does not go through the thickness of the element. Checks and splits Hardly visible permitted Slight splits at the ends and checks permitted Splits at the ends and checks permitted Colour variation Permitted if natural colours of the wood Biodeterioration Not permitted Not permitted Not permitted 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. a Knots are grouped together if the distance separating them, measured from edge to edge, does not exceed 30 mm. b Knots are slightly checked provided the width of the check does not exceed 1 mm. c Area: (π x da1 x db1)/4 + (π x da2 x db2)/4 + … when da1 is the smallest and db1 the largest diameter of the first knot.
SIST EN 13226:2009
EN 13226:2009 (E) 12 5.2.2.5 Castanea sativa (sweet chestnut) Rules for sweet chestnut are given in Table 5. Table 5 — Classification for Castanea sativa (sweet chestnut) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not permitted Not permitted Not permitted Knots
Sound and intergrown Permitted if: diameter ≤ 10 mm Permitted if: diameter ≤ 20 mm Permitted if: diameter ≤ 25 mm Unsound knots diameter ≤ 5 mm diameter ≤ 8 mm diameter ≤ 15 mm Curly grain Permitted up to 50 % of the face of the element Permitted Permitted Sound heart Permitted up to 20 % of the length of the element Permitted Permitted Yellow stain Permitted up to 5 % of the face of the element 50 % permitted Permitted Checks and splits Not permitted Permitted when the length ≤ width of the element Permitted when the length ≤ 50 % of the length of the element Ends checks going through the element Not permitted Permitted if ≤ 10 mm in length Permitted if ≤ 30 mm in length Red coloration / Blackheart Not permitted Permitted. when the length ≤ 20 % of the length of the element Permitted when the length ≤ 50 % of the length of the element Slope of the grain Permitted, no limit Permitted, no limit Permitted, no limit Bark pockets Lightning shake Not permitted Not permitted Not 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. Sound sapwood is permitted from the back up to the upper of the tongue without taking into account the limits set for the face.
SIST EN 13226:2009
EN 13226:2009 (E) 13 5.2.2.6 Larix spp. (larch) Rules for larch are given in Table 6. Table 6 — Classification for Larix spp. (larch) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not permitted Permitted Slight traces permitted Knots
Sound and intergrown
Unsound knots Permitted if: diameter ≤ 10 mm
diameter ≤ 3 mm Permitted if: diameter ≤ 20 mm
diameter ≤ 10 mm All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Checks Not permitted Permitted up to 15 mm in length Bark pockets Not permitted Not permitted Lightning shake Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Colour variation 5 % of the face permitted Permitted Resin pockets Not permitted Permitted
2 mm in width Permitted 25 mm in length 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. Sound sapwood is permitted from the back up to the upper part of the tongue without taking into account the limits set for the face.
SIST EN 13226:2009
EN 13226:2009 (E) 14 5.2.2.7 Pinus sylvestris (redwood; Scots pine) Rules for redwood; Scots pine are given in Table 7. Table 7 — Classification for Pinus sylvestris (redwood; Scots pine) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Permitted Permitted All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Knots
Sound and intergrown Unsound knots Permitted if: diameter ≤ 10 mm diameter ≤ 3 mm Permitted if: diameter ≤ 20 mm diameter ≤ 10 mm Checks Not permitted
Permitted up to 15 mm in length Bark pockets Not permitted Not permitted Lightning shake Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Colour variation 5 % of the face permitted Permitted Resin pockets Not permitted Permitted 2 mm in width Permitted 25 mm in length 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.
SIST EN 13226:2009
EN 13226:2009 (E) 15 5.2.2.8 Picea spp. (spruce) and Abies spp. (fir) Rules for spruce and fir are given in Table 8. Table 8 — Classification for Picea spp.(spruce) and Abies spp. (fir) Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Permitted Permitted All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Knots
Sound and intergrown Unsound knots Permitted if: diameter ≤ 10 mm diameter ≤ 3 mm Permitted if: diameter ≤ 20 mm diameter ≤ 10 mm Checks Not permitted Permitted up to 15 mm in length Bark pockets Not permitted Not permitted Lightning shake Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Colour variation 5 % of the face permitted Permitted Resin pockets Not permitted Permitted
2 mm in width Permitted 25 mm in length 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.
SIST EN 13226:2009
EN 13226:2009 (E) 16 5.2.2.9 Other hardwoods Rules for other hardwoods are given in Table 9. Table 9 — Classification for other hardwoods Face of the element
Features Class { ∆∆∆∆ … Sound sapwood Not permitted Permitted Slight traces permitted Knots
Sound and intergrown
Unsound knots Permitted if: diameter ≤ 2 mm if not grouped togethera
diameter ≤ 1 mm if not grouped together a
Permitted if: diameter ≤ 5 mm if not grouped together a
diameter ≤ 2 mm if not grouped together a All features permitted without limit to size or quantity if these do not impair the strength or the wearing quality of the wood flooring. Checks Not permitted Not through going. Permitted if the width ≤ 0,5 % of the width of the element Bark pockets Not permitted Not permitted Lightning shake Not permitted Not permitted Slope of grain Permitted, no limit Permitted, no limit Colour variation Permitted. Slight traces of natural discoloration (mineral lines) permitted. Permitted Medullary ray 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. In class { sound sapwood is permitted if in a corner and up to 50 % of the thickness of the element. a Knots are grouped together if the distance separating them, measured from edge to edge, does not exceed 30 mm.
SIST EN 13226:2009
EN 13226:2009 (E) 17 5.2.3 Free class The free class covers any species which may be used for wood flooring and for which hardness HB has a minimum mean value of 10 N/mm2. Hardness shall be measured according to EN 1534. The free class covers any classification which the producer wishes to offer or which is requested by the buyer. The proportions or limits of features shall be specifically indicated in the producers' literature/data sheets, in conformity with Annex B and stated according to Table B.1 when it refers to hardwood and according to Table B.2 when it refers to softwood. NOTE 10 N/mm2: approximately 1 kgf/mm2 5.2.4 Natural colours Timber colours are mainly dependent on the wood species. NOTE All timber varies in colour when exposed to light over a period of time. 5.3 Moisture content Individual elements shall have a moisture content at the time of the first delivery of the product of between 7 % and 11 %. Chestnut and maritime pine elements shall have a moisture content at the time of the first delivery of the product of between 7 % and 13 %. The moisture content shall be measured with an electric moisture meter in accordance with EN 13183-2. In case of dispute, the moisture content shall be determined by oven-drying in accordance with EN 13183-1. 5.4 Geometrical characteristics 5.4.1 General 5.4.1.1 Forms and dimensions All forms of elements are permitted, provided that their actual dimensions are within the dimensions and permitted deviations specified in this sub-clause. All dimensions are given at a reference moisture content of 9 %, except dimensions for chestnut and maritime pine elements are given at a reference moisture content of 10 %. Unless there is evidence to the contrary, it shall be assumed that the thickness and width of a piece of timber increase by 0,25 % for every 1 % of moisture content above the reference moisture content, and decrease by 0,25 % for every 1 % of moisture content below the reference moisture content. The methods of measurement of geometrical characteristics are given in EN 13647. NOTE Traditionally wood flooring elements to be used for “strip- or brick-pattern flooring“ are manufactured right-handed (except in the case of maritime pine). All the elements shall have the four edges perpendicular to the face or with a maximum slope of 3° (see Figure 1). The arrisses may be chamfered. The back may have (a) glue pocket(s). 5.4.1.2 Dimensional characteristics The following dimensional characteristics given refer to Figures 1 and 2: SIST EN 13226:2009
EN 13226:2009 (E) 18 - thickness above the groove: t1 ≥ 35 % of the total thickness t of the element, - thickness of the tongue: t3 ≥ 22 % of the total thickness t of the element, - thickness of the part below the tongue: t4 ≥ 22 % of the total thickness t of the element, - depth of optional glue pocket: t5 ≤ t/5, - width of the tongue: For b < 70 mm, b2 ≥ 3 mm (minimum 2,5 mm for 10 % of the length), For b ≥ 70 mm, b2 ≥ 5 mm (minimum 3 mm for 10 % of the length), - depth of the groove minus
the width of the tongue:
b1 – b2 ≥ 1 mm, - slope of the upper lip: 0° ≤ a≤ 3°, - undercut: 0 mm ≤ b3 ≤ 1,5 mm, - arrow tail: α (indicative value) = 67°, - slope of the underlip: ß(indicative value) = 30°. 5.4.1.3 Examples of profiles Figure 1 and Figure 2 show the most common profiles of elements.
Key 1 Face of the element 2 Slope a 3 Glue pockets a) Element of type 1 – Cross section AA SIST EN 13226:2009
EN 13226:2009 (E) 19
Key 1 Face of the element
4 End groove 2 Edge groove
5
End tongue 3 Edge tongue
b) Element of type 1 - View of the face
Figure 1 — Element of type 1
Key 1 Face of the element
4 Edge tongue 2 Slope a 3 Glue pockets a) Element of type 2 – Cross section AA SIST EN 13226:2009
EN 13226:2009 (E) 20
Key 1 Face of the element
2 Edge groove
3 End groove
b) Element of type 2 - View of the face
Figure 2 — Element of type 2
5.4.2 Nominal dimensions Table 10 gives dimensions of elements. Table 10 — Nominal dimensions of elements Dimensions in millimetres Thickness t Length l Width b ≥ 14 a
≥ 250 ≥ 40 a t = 22 mm is the most common thickness produced in Europe. Other common thicknesses are: 15 mm, 16 mm, 19 mm, 20 mm and 23 mm.
Elements which have dimensions other than those shown in Table 10 for length and width shall fulfil all the other requirements in this standard and shall previously have been characterized by tests for a specific wood species. 5.4.3 Limit deviations 5.4.3.1 Limit deviations from nominal dimensions of the element The permitted deviations of dimensions of elements at all points at the time of the first delivery ar
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