For research, development and quality certification purposes, some simply formulated 1- and 2-part """"reference test adhesives"""" have been developed and, from the most important and most often applied, some materials have been selected as """"reference test materials"""". This Technical Report offers for each of these reference test adhesives and reference test materials some information and specify some properties. CEN/TC193 Working Group 5 takes care for a continuous updating of these data sheets.