This paper describes a data base management system developed for the organization and management of information acquired by non – destructive testing of artworks usually applied at the laboratory of the Physical and Chemical Methods of the Department of Conservation of Works of Art and Antiquities at the TEI of Athens. The structure and content of the system are presented, as well the interface provided to the user. The scope of the work presented in this paper is impressive, taking into account the complexities of creating such databases, enabling successful retrieval. The advantages of the system are the collection and comparison of the relevant information from the non – destructive techniques and the standardization of their conclusions. This information is particularly important for conservators because it could be used as reference and guidance to their research and conservation treatment.