This European Standard specifies a method for determining the working life for adhesives mixed with hardener for load-bearing timber structures, by a viscosity test. This method is not suitable for determining the working life of a multi-component adhesive whose actual working life is very short. This document is only intended for obtaining a reliable basis for comparison between adhesives. The method gives results which cannot be applied to the safe manufacture of timber structures without modifications for the influences of factory temperature and relative air humidity.
EN 302-7:2013 Referenced Document
EN ISO 2555:1999 Plastics - Resins in the Liquid State or as Emulsions or Dispersions - Determination of Apparent Viscosity by the Brookfield Test Method
EN 302-7:2013 history
2023EN 302-7:2023 Adhesives for load-bearing timber structures - Test methods - Part 7: Determination of the working life under referenced conditions
2013EN 302-7:2013 Adhesives for load-bearing timber structures - Test methods - Part 7: Determination of the working life under referenced conditions
2004EN 302-7:2004 Adhesives for load-bearing timber structures - Test methods - Part 7: Determination of the conventional working life