DS/EN 302-3:1994 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 describes a method of 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) for assessing the compliance of adhesives with EN 301;
b) for assessing the usability and quality of adhesives for wood and 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 abics 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. It is not intended to be used to assess the suitability of adhesives for the manufacture of wood-based panels.
DS/EN 302-3:1994 history
2013DS/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
1994DS/EN 302-3:1994 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