EN 302-4:2013 Adhesives for load-bearing timber structures - Test methods - Part 4: Determination of the effects of wood shrinkage on the shear strength
This European Standard specifies a method for determining the influence of shear strength in crosswise gluing by wood shrinkage under drying conditions. It is suitable for the following applications: a) for assessing the compliance of adhesives with EN 301, EN 15425 and prEN 16254; b) for assessing the suitability and quality of adhesives for load-bearing timber structures; c) for determining if the adhesive is capable of withstanding stresses due to wood shrinkage without unacceptable loss of strength. 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.
EN 302-4:2013 Referenced Document
EN 13183-1:2002 Moisture content of a piece of sawn timber - Part 1: Determination by oven dry method
EN 301:2006 Adhesives@ phenolic and aminoplastic@ for load-bearing timber structures - Classification and performance requirements
ISO 5893:2002 Rubber and plastics test equipment - Tensile, flexural and compression types (constant rate of traverse) - Specification
ISO 6344-2:1998 Coated abrasives - Grain size analysis - Part 2: Determination of grain size distribution of macrogrits P12 to P220
EN 302-4:2013 history
2023EN 302-4:2023 Adhesives for load-bearing timber structures - Test methods - Part 4: Determination of the effects of wood shrinkage on the shear strength
2013EN 302-4:2013 Adhesives for load-bearing timber structures - Test methods - Part 4: Determination of the effects of wood shrinkage on the shear strength
2004EN 302-4:2004 Adhesives for Load-Bearing Timber Structures - Test Methods - Part 4: Determination of the Effects of Wood Shrinkage on the Shear Strength
1992EN 302-4:1992 Adhesives for load-bearing timber structures; test methods; part 4: determination of the effects of wood shrinkage on the shear strength