EN 1912:2004

Structural timber - Strength classes - Assignment of visual grades and species

This European Standard lists visual strength grades, species and sources of timber, and specifies the strength classes from EN 338, to which they are assigned.
NOTE   For the grades, species and sources included, there is long experience of use and/or satisfactory test data. The sources listed are therefore largely determined by existing commercial practice.

Bauholz für tragende Zwecke - Festigkeitsklassen - Zuordnung von visuellen Sortierklassen und Holzarten

Dieses Dokument gibt visuelle Festigkeitsklassen, Holzarten und deren Herkunft an und legt die Festigkeitsklassen nach EN 338 fest, denen sie zugeordnet sind.
ANMERKUNG   Für die angegebenen Sortierklassen, Holzarten und Herkünfte liegen langjährige praktische Erfahrungen und/oder befriedigende Prüfdaten vor. Die angegebene Herkunft orientiert sich daher weitestgehend an der gewerblichen Praxis.

Bois de structure - Classes de résistance - Affectation des classes visuelles et des essences

Le présent document répertorie les classes visuelles de résistance, les essences et les origines de bois et spécifie les classes de résistance, fixées par l'EN 338, auxquelles elles se rapportent.
NOTE   Pour les classes, essences et origines d'approvisionnement incluses, on doit pouvoir justifier d'une grande expérience d'utilisation et/ou de données d'essais satisfaisantes. Les origines sont donc largement déterminées par la pratique commerciale existante.

Konstrukcijski les - Trdnostni razredi - Določitev trdnostnih razredov na podlagi vizualnega razvrščanja in vrste lesa

General Information

• Status: Withdrawn
• Publication Date: 07-Dec-2004
• Withdrawal Date: 27-Feb-2007
• ICS: 79.040 - Wood, sawlogs and sawn timber
• Technical Committee: CEN/TC 124 - Timber structures
• Drafting Committee: CEN/TC 124 - Timber structures
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 28-Feb-2007
• Completion Date: 28-Feb-2007
• Ref Project: SIST EN 1912:2005 - Structural timber - Strength classes - Assignment of visual grades and species

Relations

• Replaces: EN 1912:1998/AC:1998 - Structural timber - Strength classes - Assignment of visual grades and species
• Effective Date: 22-Dec-2008
• Replaces: EN 1912:1998 - Structural timber - Strength classes - Assignment of visual grades and species
• Effective Date: 22-Dec-2008
• Merged Into: EN 1912:2004+A1:2007 - Structural timber - Strength classes - Assignment of visual grades and species
• Effective Date: 19-Jan-2023
• Consolidated By: EN 1912:2004+A2:2008 - Structural timber - Strength classes - Assignment of visual grades and species
• Effective Date: 22-Dec-2008
• Amended By: EN 1912:2004/FprA4 - Structural timber - Strength classes - Assignment of visual grades and species
• Effective Date: 25-Feb-2009
• Amended By: EN 1912:2004/prA2 - Structural timber - Strength classes - Assignment of visual grades and species
• Effective Date: 22-Dec-2008

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Structural timber - Strength classes - Assignment of visual grades and speciesBois de structure - Classes de résistance - Affectation des classes visuelles et des essencesBauholz für tragende Zwecke - Festigkeitsklassen - Zuordnung von visuellen Sortierklassen und HolzartenTa slovenski standard je istoveten z:EN 1912:2004SIST EN 1912:2005en79.040Les, hlodovina in žagan lesWood, sawlogs and sawn timberICS:SIST EN 1912:2000/AC:2000SIST EN 1912:20001DGRPHãþDSLOVENSKI
STANDARDSIST EN 1912:200501-maj-2005

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1912
December 2004 ICS 79.040 Supersedes EN 1912:1998 English version
Structural timber - Strength classes - Assignment of visual grades and species
Bois de structure - Classes de résistance - Affectation des classes visuelles et des essences
Bauholz für tragende Zwecke - Festigkeitsklassen - Zuordnung von visuellen Sortierklassen und Holzarten This European Standard was approved by CEN on 10 September 2004.
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 national standards may be obtained on application to the Central Secretariat 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 Central Secretariat has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre: rue de Stassart, 36
B-1050 Brussels © 2004 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 1912:2004: E

Grading standards.14 Bibliography.16

1 Scope This document lists visual strength grades, species and sources of timber, and specifies the strength classes from EN 338, to which they are assigned. NOTE For the grades, species and sources included, there is long experience of use and/or satisfactory test data. The sources listed are therefore largely determined by existing commercial practice. 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 384, Structural timber - Determination of characteristic values of mechanical properties and density. EN 518, Structural timber - Grading - Requirements for visual strength grading standards. 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 timber source geographical area of growth of the trees from which the timber is sawn 3.2 timber species individual species or combination of species 3.3 Nordic countries Denmark, Finland, Iceland, Norway and Sweden 4 Symbols and abbreviations CNE Europe
Central, Northern and Eastern Europe NNE Europe
Northern and North Eastern Europe NC Europe
Northern and Central Europe
C30 France
Germany
Germany and
Austria
Nordic Countries
USA
Spain ST-I
S13
S13 S13 S13 S13
T3 T3 T3 T3
J&P Sel SLF Sel
ME1 Spruce & Fir
Douglas Fir
Spruce Pine Fir Larch
Pine (Redwood) Spruce (Whitewood) Fir Larch
Southern pine Southern pine
Laricio pine France
Germany
CNE Europe CNE Europe CNE Europe CNE Europe
NNE Europe NNE Europe NNE Europe NNE Europe
USA USA
Spain 1, 22
22 47 1 15
47 22 1 15
35, 36, 43, 48 35, 36, 43, 48
Limited to thicknesses of 60 mm and above
C27 France
Spain ST-I
ME1 Larch
Scots pine France
Spain 15
C24
France
Germany
Germany and Austria
Nordic countries
Spain
USA and Canada
ST-II ST-II ST-II ST-II ST-II
S10
S10 S10 S10 S10
T2 T2 T2 T2 T2
ME1 ME1
J&P Sel J&P Sel J&P Sel Spruce & Fir Douglas Fir Pines Poplar (see note 3) Larch
Douglas Fir
Spruce Pine Fir Larch
Pine (Redwood) Spruce (Whitewood) Fir Larch Sitka spruce
Radiata pine Maritime pine
Douglas fir-Larch Hem-fir S-P-F France France France France France
Germany
CNE Europe CNE Europe CNE Europe CNE Europe
NNE Europe NNE Europe NNE Europe NNE Europe NNE Europe
Spain Spain
USA & Canada USA & Canada USA & Canada 1, 22 54 39, 44, 47 50 15
22 47 1 15
47 22 1 15 28
49 44
18, 54 2, 4, 5, 7, 8, 62 3, 6, 23, 25, 26, 27, 32, 34, 45
Limited to thicknesses of 60 mm and above

Table 1 – Assignment of grades of conifer species and poplar to strength classes (continued)
Strength Class Grading rule publishing country (see note 1 at end of Table) Grade (see note 4) Species commercial name Source (see note 2) Botanical identification (see Table 3) Comments C24 USA and Canada
UK SLF Sel SLF Sel SLF Sel
SS SS SS SS SS SS
SS SS SS Douglas fir-Larch Hem-fir S-P-F
Paraná pine Redwood Whitewood Douglas fir-Larch Hem-fir S-P-F
Southern pine Caribbean pitch pine Larch USA & Canada USA & Canada USA & Canada
Brazil CNE Europe CNE Europe USA & Canada USA & Canada USA & Canada
USA Caribbean UK 18, 54 2, 4, 5, 7, 8, 62
...