EN 73:2020+A1:2024
(Main)Durability of wood and wood-based products - Accelerated ageing of treated wood prior to biological testing - Evaporative ageing procedure
Durability of wood and wood-based products - Accelerated ageing of treated wood prior to biological testing - Evaporative ageing procedure
This document specifies an evaporative ageing procedure, applicable to test specimens of wood and wood-based products which are subsequently subjected to biological tests.
NOTE The method can also be used for pre-conditioning of untreated wood, modified wood and wood-based panel products, whether they received preservative treatment or not.
Dauerhaftigkeit von Holz und Holzprodukten - Beschleunigte Alterung von behandeltem Holz vor biologischen Prüfungen - Verdunstungsbeanspruchung
Dieses Dokument legt ein Verfahren zur Verdunstungsbeanspruchung fest, das für Prüfkörper aus Holz oder Holzprodukten anwendbar ist, die anschließend biologischen Prüfungen unterzogen werden.
ANMERKUNG Dieses Verfahren kann auch zur Vorbehandlung von unbehandeltem Holz, modifiziertem Holz und Holzwerkstoff-Produkten mit oder ohne Zusatz von Holzschutzmitteln verwendet werden.
Durabilité du bois et des produits dérivés - Épreuves de vieillissement accéléré des bois traités avant essais biologiques - Épreuve d'évaporation
Trajnost lesa in lesnih proizvodov - Pospešeno staranje zaščitenega lesa pred biološkim preskušanjem - Postopek izparevanja (vključno z dopolnilom A1)
Ta dokument določa postopek izparevanja, ki se uporablja za preskusne vzorce lesa in lesnih proizvodov, ki so nato še biološko preskušeni.
OPOMBA: Metodo je mogoče uporabiti tudi za predhodno obdelavo neobdelanega lesa, obdelanega lesa in lesnih panelov, ne glede na to, ali so bili obdelani z zaščitnimi sredstvi ali ne.
General Information
Relations
Overview
EN 73:2020+A1:2024 is a European standard developed by CEN that specifies an evaporative ageing procedure for wood and wood-based products treated with preservatives before they undergo biological testing. This accelerated ageing method simulates the volatilization and loss of wood preservatives under controlled laboratory conditions, reflecting real-world exposure and helping to assess the durability of the treated wood.
The procedure is applicable not only to treated wood but also to untreated, modified wood, and wood-based panels, whether preservative-treated or not. The standard ensures consistent pre-conditioning of test specimens, which is critical for reliable biological testing outcomes.
Key Topics
Scope and Application
- Applies to wood and wood-based products as test specimens before biological testing.
- Includes treated, untreated, modified, and panel wood products.
Evaporative Ageing Principle
- Specimens are exposed to a controlled, dust-free airflow at a defined temperature (40 ± 2 °C) and velocity (1 ± 0.3 m/s).
- Exposure typically lasts 12 weeks to mimic preservative volatilization.
- During ageing, specimens are rotated periodically to ensure uniform evaporation.
Test Specimen Preparation
- Specimens must be prepared and conditioned according to relevant biological testing standards.
- The ageing procedure should begin within three months of specimen preparation.
- Specimens can be stored at (20 ± 2) °C and (65 ± 5) % relative humidity before and after ageing.
Equipment Requirements
- Use a compartmentalized wind tunnel with heating and air distribution for controlled, uniform ageing conditions.
- Instruments must accurately measure temperature and air velocity.
Procedure Details
- Positioning of specimens to allow optimal airflow without cross-contamination.
- Rotation of specimens through 180° on a horizontal or vertical axis every two weeks to simulate even ageing.
- Guidelines for handling multiple specimens within compartments.
Reporting and Documentation
- Biological test reports must reference this standard, specifying exposure duration, storage conditions, and any deviations.
- The ageing period and timing relative to biological testing must be documented to ensure traceability.
Applications
Wood Durability Testing
- Accelerates the ageing of preservative-treated wood to anticipate long-term performance under biological stress.
- Supports the evaluation of wood preservatives’ effectiveness against fungi, insects, and other degrading organisms.
Quality Control and Product Development
- Ensures wood products meet durability standards before market release.
- Assists manufacturers in improving preservative formulations through reproducible ageing conditions.
Compliance and Certification
- Provides a harmonized method for European timber standards compliance.
- Facilitates certification and regulatory approval by providing standardized ageing protocols.
Research and Innovation
- Used in forestry, wood science research, and development of novel wood modification techniques.
- Enables comparative testing of various wood treatments, including untreated and modified wood.
Related Standards
- EN 46-2: Wood preservatives - Testing preventive action against larvae of Hylotrupes bajulus (Ovicidal effect).
- EN 113: Determination of protective effectiveness against wood-destroying basidiomycetes (fungi).
- EN 118: Testing preventive action against European termites (Reticulitermes species).
- EN 599-1: Durability of wood and wood-based products - Specification of efficacy for preventive wood preservatives according to use class.
Keywords: Durability of wood, wood preservatives, evaporative ageing, accelerated ageing, treated wood testing, biological testing of wood, wood-based products, wood modification, wood durability standards, CEN standards, EN 73:2020+A1:2024, wood preservative volatilization, pre-conditioning of wood, laboratory ageing procedures.
Standards Content (Sample)
SLOVENSKI STANDARD
01-junij-2024
Trajnost lesa in lesnih proizvodov - Pospešeno staranje zaščitenega lesa pred
biološkim preskušanjem - Postopek izparevanja (vključno z dopolnilom A1)
Durability of wood and wood-based products - Accelerated ageing of treated wood prior
to biological testing - Evaporative ageing procedure
Dauerhaftigkeit von Holz und Holzprodukten - Beschleunigte Alterung von behandeltem
Holz vor biologischen Prüfungen - Verdunstungsbeanspruchung
Durabilité du bois et des produits dérivés - Épreuves de vieillissement accéléré des bois
traités avant essais biologiques - Épreuve d'évaporation
Ta slovenski standard je istoveten z: EN 73:2020+A1:2024
ICS:
71.100.50 Kemikalije za zaščito lesa Wood-protecting chemicals
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
EN 73:2020+A1
EUROPEAN STANDARD
NORME EUROPÉENNE
February 2024
EUROPÄISCHE NORM
ICS 71.100.50 Supersedes EN 73:2020
English Version
Durability of wood and wood-based products - Accelerated
ageing of treated wood prior to biological testing -
Evaporative ageing procedure
Durabilité du bois et des produits dérivés - Épreuves Dauerhaftigkeit von Holz und Holzprodukten -
de vieillissement accéléré des bois traités avant essais Beschleunigte Alterung von behandeltem Holz vor
biologiques - Épreuve d'évaporation biologischen Prüfungen - Verdunstungsbeanspruchung
This European Standard was approved by CEN on 24 February 2020 and includes Amendment approved by CEN on 18
December 2023.
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 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 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, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 73:2020+A1:2024 E
worldwide for CEN national Members.
Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Principle . 5
5 Equipment . 5
6 Test specimens . 6
6.1 Definition and origin . 6
6.2 Number of test specimens . 6
7 Procedure. 6
7.1 Arrangement of the test specimens . 6
7.2 Starting and adjustment of the apparatus . 7
7.3 Ageing procedure . 7
7.4 Exposure period in the tunnel . 9
8 Destination of the test specimens after the evaporative ageing procedure . 9
9 Reference to this document in biological test reports . 9
Bibliography . 10
European foreword
This document (EN 73:2020+A1:2024) has been prepared by Technical Committee CEN/TC 38
“Durability of wood and wood-based products”, 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 August 2024, and conflicting national standards shall be
withdrawn at the latest by August 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
!EN 73:2020 superseded EN 73:2014. Data using edition EN 73:2014 may still be used.
Compared to EN 73:2014 the following modifications have been made in EN 73:2020:"
— change of title;
— inclusion of untreated wood, modified wood and wood-based panel products in the Scope;
— inclusion of a statement regarding the maximum period of time permitted between the completion
of the ageing procedure and the start of the biological test procedure;
— inclusion of a requirement that this period of time be stated in the biological test report.
This document includes Amendment 1 approved by CEN on 18 December 2023.
This document supersedes EN 73:2020.
The start and finish of text introduced or altered by amendment is indicated in the text by tags !".
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia,
Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland,
Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North
Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United
Kingdom.
Introduction
During its service life, preservative-treated wood can be exposed to conditions which may cause the
volatilization and removal of the wood preservative thereby reducing its effectiveness.
This document provides a laboratory based method for ageing test specimens which are to be subject to
biological testing.
1 Scope
This document specifies an evaporative ageing procedure, applicable to test specimens of wood and
wood-based products which are subsequently subjected to biological tests.
NOTE The method can also be used for pre-conditioning of untreated wood, modified wood and wood-based
panel produc
...
Frequently Asked Questions
EN 73:2020+A1:2024 is a standard published by the European Committee for Standardization (CEN). Its full title is "Durability of wood and wood-based products - Accelerated ageing of treated wood prior to biological testing - Evaporative ageing procedure". This standard covers: This document specifies an evaporative ageing procedure, applicable to test specimens of wood and wood-based products which are subsequently subjected to biological tests. NOTE The method can also be used for pre-conditioning of untreated wood, modified wood and wood-based panel products, whether they received preservative treatment or not.
This document specifies an evaporative ageing procedure, applicable to test specimens of wood and wood-based products which are subsequently subjected to biological tests. NOTE The method can also be used for pre-conditioning of untreated wood, modified wood and wood-based panel products, whether they received preservative treatment or not.
EN 73:2020+A1:2024 is classified under the following ICS (International Classification for Standards) categories: 71.100.50 - Wood-protecting chemicals. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 73:2020+A1:2024 has the following relationships with other standards: It is inter standard links to EN 73:2020, EN 73:2020/prA1. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase EN 73:2020+A1:2024 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.
Die Norm EN 73:2020+A1:2024 beschäftigt sich mit der Haltbarkeit von Holz und holzbasierenden Produkten, indem sie ein Verfahren zur beschleunigten Alterung von behandeltem Holz vor biologischen Tests festlegt. Der spezifische Umfang dieser Norm ermöglicht es, Testproben von Holz und holzbasierenden Produkten vor deren unter biologischen Testbedingungen durchgeführten Analysen einem Verdampfungsalterungsprozess zu unterziehen. Eine der zentralen Stärken dieser Norm liegt in ihrer Vielseitigkeit; sie ist nicht nur für behandeltes Holz anwendbar, sondern kann auch zur Vorbehandlung von unbehandeltem Holz, modifiziertem Holz und Holzwerkstoffen genutzt werden, unabhängig davon, ob sie eine Schutzbehandlung erhalten haben oder nicht. Dieser Aspekt erhöht die Relevanz der Norm, da er eine breite Palette von Holzprodukten abdeckt und es ermöglicht, konsistente Ergebnisse in biologischen Tests zu erzielen. Die in EN 73:2020+A1:2024 vorgeschlagene Methode zur Verdampfung sorgt für ein standardisiertes Vorgehen, das die Bedingungen für biologische Tests optimiert und so die Vergleichbarkeit der Ergebnisse verbessert. Dies ist von hoher Bedeutung für die Branche, da die Haltbarkeit von Holzprodukten entscheidend für deren Anwendung und Lebensdauer ist. Insgesamt bietet die Norm EN 73:2020+A1:2024 eine klare und fundierte Vorgehensweise zur Evaluierung der Haltbarkeit von Holz und holzbasierenden Produkten, mit einem besonderen Fokus auf die beschleunigte Alterung, die für die Planung und Durchführung von biologischen Tests unerlässlich ist.
The standard EN 73:2020+A1:2024 is a crucial document that addresses the durability of wood and wood-based products through an innovative evaporative ageing procedure. This method is designed specifically for application on test specimens prior to biological testing, enhancing the reliability of test results concerning wood longevity and resistance to biological threats. One of the strengths of this standard lies in its comprehensive scope, which encompasses not only treated wood but also extends to untreated wood, modified wood, and wood-based panel products. This inclusivity ensures that various types of wood products are accommodated, regardless of whether they have received preservative treatment. This flexibility is particularly relevant in today’s diverse market, where manufacturers may utilize a range of treatment options based on specific applications or environmental conditions. The evaporative ageing procedure outlined in the EN 73:2020+A1:2024 standard is significant for its ability to simulate conditions that wood and wood-based products may encounter over time. By establishing a standardized method for accelerated ageing, this standard aids in assessing the performance and viability of wood materials under accelerated conditions, providing manufacturers and stakeholders with essential insights into their product's long-term durability. Additionally, this standard promotes consistency and comparability in testing methods across the industry. By adhering to this standard, organizations can ensure that their findings are aligned with established protocols, facilitating better communication and understanding among manufacturers, researchers, and consumers about the durability of wood products. In summary, EN 73:2020+A1:2024 stands out for its robust framework for evaluating the durability of wood and wood-based products, emphasizing accelerated ageing processes. Its relevance is underscored by its adaptability to various wood products and its potential to improve biological testing outcomes, making it a vital reference for anyone involved in the production, preservation, or research of wood materials.
SIST EN 73:2020+A1:2024は、木材および木材ベースの製品の耐久性に関する標準化文書であり、特に加速老化試験の手法を確立しています。この標準の適用範囲は、木材および木材ベースの製品の試験標本に対する蒸発老化手順を特定し、それが生物学的試験に先立って必要な条件を提供することにあります。 この文書の強みは、下記の点に見られます。まず、蒸発老化処理は、保存処理を施した木材だけでなく、未処理の木材や改良木材、木材パネル製品の前処理にも適用可能であるため、非常に柔軟性が高い方法を提供しています。この多様性により、ユーザーはさまざまな条件下で生物学的試験を行う際の準備を効率的に行うことができます。 また、EN 73:2020+A1:2024は、木材製品の耐久性に対する厳格な評価基準を構築し、業界全体の信頼性と透明性を高める役割を果たします。この標準は、環境に配慮した製品開発や持続可能な建材の選定を奨励するため、建設や製造業にとって極めて重要な指針となります。 さらに、この標準は、木材および木材ベースの製品に関心を持つ研究者や技術者にとっても、価値のある枠組みを提供し、製品の長期的なパフォーマンスを評価するための信頼性の高い手法を確立する助けになります。したがって、SIST EN 73:2020+A1:2024は、木材の耐久性試験において不可欠なリソースであり、業界の進展に寄与するものとなっています。
La norme SIST EN 73:2020+A1:2024, intitulée "Durabilité du bois et des produits en bois - Vieillissement accéléré du bois traité avant les tests biologiques - Procédure de vieillissement évaporatif", présente un cadre méthodologique robuste pour évaluer la durabilité des matériaux en bois et dérivés. Son champ d’application couvre spécifiquement les procédures d'âge évaporatif qui s'appliquent aux échantillons de bois et aux produits à base de bois. L'un des principaux atouts de cette norme réside dans sa capacité à tester les spécimens de bois traités, mais également à pré-conditionner des bois non traités, du bois modifié et des panneaux à base de bois, qu'ils soient traités ou non avec des agents préservateurs. Ceci permet une grande flexibilité d'application dans divers contextes industriels et environnementaux, garantissant ainsi que tous les types de produits en bois peuvent être évalués de manière cohérente. En termes de pertinence, cette norme est particulièrement significative dans le cadre de l'industrie du bois, où les conditions climatiques et les attaques biologiques peuvent compromettre la longévité des produits. La méthode de vieillissement évaporatif permet de simuler rapidement des conditions réelles d'utilisation, fournissant ainsi des résultats fiables pour les tests biologiques ultérieurs. Ce processus accéléré n'est pas seulement efficace, mais reflète également les exigences contemporaines en matière de durabilité et de performance des matériaux. La norme SIST EN 73:2020+A1:2024 fait preuve d'une grande rigueur dans la définition des procédures expérimentales et contribue à établir des critères clairs pour la durabilité du bois et des produits dérivés. En favorisant la standardisation des méthodes de test, elle soutient les fabricants dans leur quête pour garantir la qualité et la résistance des produits en bois sur le marché.
EN 73:2020+A1:2024 표준은 목재 및 목재 기반 제품의 내구성과 관련된 중요한 지침을 제공합니다. 이 문서는 생물학적 테스트를 수행하기 전에 처리된 목재 샘플의 가속 노화 절차를 명시하고 있으며, 목재 제품의 내구성을 평가하는 데 있어 핵심적인 역할을 합니다. 주목할 만한 내용은 이 표준이 적용될 수 있는 시험 샘플의 범위입니다. 처리된 목재뿐만 아니라, 비처리 목재, 수정된 목재 및 목재 패널 제품에도 사전 조건화로 사용될 수 있어, 매우 다양한 유형의 목재 제품에 적용이 가능하다는 점에서 범위가 넓습니다. 이러한 유연성은 목재 산업에서의 실제 적용에서 큰 장점을 제공합니다. 또한, EN 73:2020+A1:2024 표준의 강점 중 하나는 증발 노화 절차에 대한 명확한 지침을 제공한다는 것입니다. 이 절차는 생물학적 시험 전에 목재의 물리적 및 화학적 변화를 신뢰성 있게 평가할 수 있도록 설계되었으며, 이는 연구자와 산업 실무자에게 매우 유용합니다. 이 문서의 연관성 또한 상당합니다. 친환경 건축 및 지속 가능성에 대한 관심이 높아짐에 따라, 목재 및 목재 기반 제품에 대한 내구성 기준은 더욱 중요해지고 있습니다. 따라서, EN 73:2020+A1:2024 표준은 업계가 변하는 요구에 효과적으로 대응할 수 있도록 돕는 필수 기준으로 자리잡고 있습니다. 결론적으로, EN 73:2020+A1:2024 표준은 목재 제품의 내구성과 관련하여 전문적이고 체계적인 접근 방식을 제공하며, 그로 인해 목재 산업 전반에 걸쳐 유용하고 필수적인 자료로 평가될 수 있습니다.
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