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Normas DIN – AENOR
DIN EN 302-3:2013-06

DIN EN 302-3:2013-06

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; German version EN 302-3:2013

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 en température et humidité sur la résistance à la traction transversale; Version allemande EN 302-3:2013

Klebstoffe für tragende Holzbauteile - Prüfverfahren - Teil 3: Bestimmung des Einflusses von Säureschädigung der Holzfasern durch Temperatur- und Feuchtezyklen auf die Querzugfestigkeit; Deutsche Fassung EN 302-3:2013

Fecha Anulación:
2017-11 /Withdrawn
Equivalencias internacionales:

EN 302-3 (2013-03)

Relación con otras normas DIN:

Reemplaza a: DIN EN 302-3:2011-06

Reemplazada por: DIN EN 302-3:2017-11

Reemplaza a: DIN EN 302-3:2006-02

Resumen:
This European Standard specifies a method for determining the effect on bond strength of damage to wood fibres caused by the action of acids from the adhesive or primer used in the gluing process during climatic cycling. It is suitable for the following applications: b) for assessing the compliance of adhesives with EN 301, EN 15425 and prEN 16254; c) for assessing the suitability and quality of adhesives for load-bearing timber structures; d) 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 Norway spruce (Picea abies L.). This method is not intended for use to provide numerical design data and does not necessarily represent the performance of the bonded member in service.
Keywords:
Acid resistance, Adhesives, Aminoplasts, Checking equipment, Chemical hazards, Climatic loading, Climatic tests, Components, Conditioned cabinet, Construction, Cycle, Cyclic, Damage by acid, Duration, Fibres, Glue, Holdings, Humidity, Impairment damage, Loadability, Loadbearing, Material testing machines, Moisture, Phenol, Phenolic plastics, Polycondensation products, Principle, Production, Selection, Storage, Structural timber, Temperature, Tensile strength, Test equipment, Test pieces, Testing, Timber construction, Transverse tensile strength, Wood, Wood fibres, Wood technology, Wooden structural part
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