This European Standard classifies thermoplastic resin based wood adhesives for non-structural applications into durability classes D1 to D4 based on the wet and dry strengths of bond-lines measured under specified conditions after various conditioning treatments.
DS/EN 204:2001 history
2001DS/EN 204:2001 Classification of thermoplastic wood adhesives for non-structural applications
1994DS/EN 204:1994 Classification of non-structural adhesives for joining of wood and derived timber products