Historical
DIN EN 14257:2006
Adhesives - Wood adhesives - Determination of tensile strength of lap joints at elevated temperature (WATT'91); German version EN 14257:2006
This European Standard specifies a method for testing the strength of wood adhesives at 80°C. NOTE The procedure described is based on a test developed in Germany known originally as the Watt '91 test. It uses the test piece described in EN 205.
Deutsches Institut für Normung [din]