EN 302-3:2004/A1:2005

Adhesives for load-bearing timber structures - Test methods - Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength

This Part of EN 302 specifies a method for determining the effect on bond strength of damage to wood fibres caused by the action of acids from the adhesive during climatic cycling.
It is suitable for the following applications:
a) assessing the compliance of adhesives with EN 301;
b) for assessing the suitability and quality of adhesives for load-bearing timber structures;
c) for determining if the adhesive after bonding has a damaging influence on the strength of the wood due to chemical action.
This test is intended primarily to obtain performance data for the classification of adhesives for load-bearing timber structures according to their suitability for use in defined climatic environments. This test is carried out on spruce (Picea abies L.).
This method is intended for use to provide numerical design data and does not necessarily represent the performance of the bonded member in service. It is not intended to be used to assess the suitability of adhesives for the manufacture of wood-based panels.
NOTE   Attention is drawn to the fact that the performance requirement established in prEN 301 for the acid fibre damage test applies only if either:
1) the adhesive mixture, or
2) one of the adhesive components, when applied separately,
shows a pH value lower than 4,0, as determined by EN 1245.

Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 3: Bestimmung des Einflusses von Säureschädigung der Holzfasern durch Temperatur- und Feuchtezyklen auf die Querzugfestigkeit

4. Absatz, 1. Zeile: Ersetze Dieses Prüfverfahren ist zur Ermittlung von Rechenwerten geeignet durch Dieses Prüfverfahren ist nicht zur Ermittlung von Rechenwerten geeignet

Adhésifs pour structures portantes en bois - Méthodes d'essai - Partie 3 : Détermination de l'influence de l'attaque d'acide des fibres de bois, résultant de traitements cycliques de température et d'humidité sur la résistance à la traction transversale

Alinéa 4, ligne 1 : Remplacer « La présente méthode est destinée à fournir des données numériques… » par « La présente méthode n’est pas destinée à fournir des données numériques…. »

Lepila za nosilne lesene konstrukcije – Preskusne metode – 3. del: Ugotavljanje vpliva kislinskih poškodb lesnih vlaken, nastalih zaradi cikličnih obremenitev s temperaturo in vlago, na prečno natezno trdnost

General Information

• Status: Withdrawn
• Publication Date: 01-Nov-2005
• Withdrawal Date: 26-Mar-2013
• ICS: 83.180 - Adhesives
• Technical Committee: CEN/TC 193 - Adhesives
• Drafting Committee: CEN/TC 193/SC 1/WG 8 - Revision of EN 301 and EN 302
• Current Stage: 9960 - Withdrawal effective - Withdrawal
• Start Date: 27-Mar-2013
• Completion Date: 27-Mar-2013
• Ref Project: SIST EN 302-3:2004/A1:2006 - Adhesives for load-bearing timber structures - Test methods - Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength

Relations

• Replaced By: EN 302-3:2013 - Adhesives for load-bearing timber structures - Test methods - Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength
• Effective Date: 03-Apr-2013
• Amends: EN 302-3:2004 - Adhesives for load-bearing timber structures - Test methods - Part 3: Determination of the effect of acid damage to wood fibres by temperature and humidity cycling on the transverse tensile strength
• Effective Date: 08-Jun-2022

Standards Content (Sample)

SLOVENSKI STANDARD
SIST EN 302-3:2004/A1:2006
01-april-2006
/HSLOD]DQRVLOQHOHVHQHNRQVWUXNFLMH±3UHVNXVQHPHWRGH±GHO8JRWDYOMDQMH
YSOLYDNLVOLQVNLKSRãNRGEOHVQLKYODNHQQDVWDOLK]DUDGLFLNOLþQLKREUHPHQLWHYV
WHPSHUDWXURLQYODJRQDSUHþQRQDWH]QRWUGQRVW
Adhesives for load-bearing timber structures - Test methods - Part 3: Determination of
the effect of acid damage to wood fibres by temperature and humidity cycling on the
transverse tensile strength
Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 3: Bestimmung des Einflusses
von Säureschädigung der Holzfasern durch Temperatur- und Feuchtezyklen auf die
Querzugfestigkeit
Adhésifs pour structures portantes en bois - Méthodes d'essai - Partie 3 : Détermination
de l'influence de l'attaque d'acide des fibres de bois, résultant de traitements cycliques
de température et d'humidité sur la résistance a la traction transversale
Ta slovenski standard je istoveten z: EN 302-3:2004/A1:2005
ICS:
83.180 Lepila Adhesives
91.080.20 Lesene konstrukcije Timber structures
SIST EN 302-3:2004/A1:2006 en
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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SIST EN 302-3:2004/A1:2006

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SIST EN 302-3:2004/A1:2006
EUROPEAN STANDARD
EN 302-3:2004/A1
NORME EUROPÉENNE
EUROPÄISCHE NORM
November 2005
ICS 83.180

English Version
Adhesives for load-bearing timber structures - Test methods -
Part 3: Determination of the effect of acid damage to wood fibres
by temperature and humidity cycling on the transverse tensile
strength
Adhésifs pour structures portantes en bois - Méthodes Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 3:
d'essai - Partie 3 : Détermination de l'influence de l'attaque Bestimmung des Einflusses von Säureschädigung der
d'acide des fibres de bois, résultant de traitements Holzfasern durch Temperatur- und Feuchtezyklen auf die
cycliques de température et d'humidité sur la résistance à Querzugfestigkeit
la traction transversale
This amendment A1 modifies the European Standard EN 302-3:2004; it was approved by CEN on 26 September 2005.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for inclusion of this
amendment into the relevant 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 amendment 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
© 2005 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 302-3:2004/A1:2005: E
worldwide for CEN national Members.

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SIST EN 302-3:2004/A1:2006
EN 302-3:2004/A1:2005 (E)
Foreword
This European standard (EN 302-3:2004/A1:2005) has been prepared by Technical Committee CEN/TC 193
“Adhesives”, the secretariat of which is held by AENOR.
This Amendment to the European Standard EN 302-3:2004 shall be given the status of a national standard,
either by publication of an identical text or by endorsement, at the latest by May 2006, and conflicting national
standards shall be withdrawn at the latest by May 2006.
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.
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.
2

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SIST EN 302-3:2004/A1:2006
EN 302-3:2004/A1:2005 (E)
1 Scope
Paragraph 4, line 1: Substitute 'This method is intended for use to provide numerical…' by   'This method is
not intended for use to provide numerical…'

5.2 Clima
...