Consolidamento per iniezione The Cultural Heritage Regulation Code defines "Cultural Heritage the immovable and movable property that [...] presents interest from many viewpoints: artistic, historical, archaeological, ethno-anthropological, paper-based and bibliographic documentation and other things [...] as testimonies of civilization”. And again specifies that "The safeguard consists of the functions and of the direct activities, on proper basis of a cognitive action, to identify the objects constituent the Cultural Heritage and to ensure its preservation and conservation for purposes of public use. Based on these requirements, the preservation and conservation can not disregard a preliminary study conducted on a large scale: such operation moves from the analysis of archival and bibliographic sources by specialists (art historians, archivists, architects) seeking to find information on historical phases, written documents, graphics or photographs.

Also an eye-investigation of the object is an important starting point for a scientific conservation understanding: the constituent materials are analyzed in a close range of distance, the surface alteration forms and the conservation status are valued. These kind of reviews are under the direct responsibility of the operators: the restorers, helped by technical specialists such as architects or engineers, for structural problems.
In addition, it is possible to discuss the problems encountered during the preliminary study sampling small part to analyze in laboratory, or using specific in-situ instrumentation. Only after a careful diagnosis and a clear design is possible to operate a serious and proficient restoration, minimizing the unknowns and the contingencies that in the field of restoration are very frequent.