SIST EN 14298:2005
(Main)Sawn timber - Assessment of drying quality
Sawn timber - Assessment of drying quality
This document defines a method of assessment of drying quality. It applies to a lot of dried sawn timber, a lot of dried planed timber and a lot of dried sawn timber surfaced by other means. It applies to both softwood and hardwood with a thickness not greater than 100 mm.
The quality of drying is expressed in terms of target and average moisture content of the lot as well as defining the moisture content variation between individual pieces expressed as allowable upper and lower limits.
An option for specifying the degree of case-hardening is included.
NOTE 1 Other features related to drying, e.g. checking, distortions, stain, etc., are specified in documents for visual grading of sawn timber or in product specifications and are not covered by this document.
NOTE 2 In the following the term "sawn timber" is used for all dried timber covered by this the scope.
Schnittholz - Ermittlung der Trocknungsqualität
Diese Europäische Norm legt ein Verfahren zur Bestimmung der Trocknungsqualität fest. Sie gilt für
getrocknetes Schnittholz und für getrocknetes Holz, das gehobelt oder anderweitig oberflächenbearbeitet
wurde. Sie gilt für Nadelholz und Laubholz mit einer Dicke bis 100 mm.
Die Trocknungsqualität wird angegeben als Sollfeuchte (Zielfeuchte) und Ist-Feuchte (mittlere Holzfeuchte)
eines Loses sowie durch die Festlegung der Streuung der Holzfeuchte zwischen einzelnen Stücken,
angegeben durch die zulässigen oberen und unteren Grenzwerte.
Außerdem wird die Angabe des Verschalungsgrades beschrieben.
ANMERKUNG 1 Andere Merkmale mit Bezug zur Trocknung, wie z. B. Rissbildung, Verformungen, Verfärbungen usw.
sind in Normen für visuelle Sortierung von Schnittholz oder Produktspezifikationen festgelegt und werden nicht in dieser
Norm behandelt.
ANMERKUNG 2 Im Folgenden wird die Benennung ?Schnittholzii für jegliches getrocknetes Holz verwendet, das zum
Anwendungsbereich dieser Norm gehört.
Bois scié - Estimation de la qualité du séchage
Le présent document définit une méthode d?estimation de la qualité du séchage. Elle s?applique a un lot de
bois sciés secs, un lot de bois secs rabotés et a un lot de bois sciés surfacés par d?autres moyens. Elle
s?applique a la fois aux bois résineux et aux bois feuillus d?épaisseur inférieure a 100 mm.
La qualité du séchage est exprimée en termes de teneur en humidité cible et de teneur en humidité moyenne
du lot de meme qu?elle définit la variation de la teneur en humidité entre des pieces individuelles telle qu?
admise dans les limites supérieure et inférieure.
Une option permettant de spécifier le degré de la cémentation est incluse.
NOTE 1 Les autres criteres qualitatifs relatifs au séchage, par exemple les fentes, les déformations, les discolorations,
etc., sont spécifiés dans les normes de classement visuel des bois sciés ou dans les spécifications de produit et ne font
pas l?objet de cette norme.
NOTE 2 Dans la suite du document le terme « bois scié » est utilisé pour tous les bois secs couverts par le domaine
d?application..
Žagani les – Ocenjevanje kakovosti sušenja
General Information
Relations
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Žagani les – Ocenjevanje kakovosti sušenjaSchnittholz - Ermittlung der TrocknungsqualitätBois scié - Estimation de la qualité du séchageSawn timber - Assessment of drying quality79.040Les, hlodovina in žagan lesWood, sawlogs and sawn timberICS:Ta slovenski standard je istoveten z:EN 14298:2004SIST EN 14298:2005en01-januar-2005SIST EN 14298:2005SLOVENSKI
STANDARD
SIST EN 14298:2005
EUROPEAN STANDARDNORME EUROPÉENNEEUROPÄISCHE NORMEN 14298November 2004ICS 79.040 English versionSawn timber - Assessment of drying qualityBois scié - Estimation de la qualité du séchageSchnittholz - Ermittlung der TrocknungsqualitätThis European Standard was approved by CEN on 2 September 2004.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 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 translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the officialversions.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 STANDARDIZATIONCOMITÉ EUROPÉEN DE NORMALISATIONEUROPÄISCHES KOMITEE FÜR NORMUNGManagement Centre: rue de Stassart, 36
B-1050 Brussels© 2004 CENAll rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN 14298:2004: ESIST EN 14298:2005
EN 14298:2004 (E) 2 Contents Page Foreword.3 1 Scope.4 2 Normative references.4 3 Terms and definitions.4 4 Symbols and abbreviations.5 5 Drying quality specification.5 5.1 General.5 5.2 Standard drying.5 5.3 Specific end-use drying.6 6 Assessment of drying quality of a lot of sawn timber.7 6.1 Range of moisture content.7 6.2 Sampling.7 6.3 Testing and evaluation.7 6.3.1 Moisture content.7 6.3.2 Case-hardening.7 Annex A (informative)
Drying quality specification.8
SIST EN 14298:2005
EN 14298:2004 (E) 3 Foreword This document (EN 14298:2004) 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 May 2005, and conflicting national standards shall be withdrawn at the latest by May 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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.
SIST EN 14298:2005
EN 14298:2004 (E) 4 1 Scope This document defines a method of assessment of drying quality. It applies to a lot of dried sawn timber, a lot of dried planed timber and a lot of dried sawn timber surfaced by other means. It applies to both softwood and hardwood with a thickness not greater than 100 mm. The quality of drying is expressed in terms of target and average moisture content of the lot as well as defining the moisture content variation between individual pieces expressed as allowable upper and lower limits. An option for specifying the degree of case-hardening is included. NOTE 1 Other features related to drying, e.g. checking, distortions, stain, etc., are specified in documents for visual grading of sawn timber o
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