In the laboratory, at SRAL analysis can be conducted on paint samples and samples of other materials. SRAL has a laboratory where, amongst other things, research into historical painting materials can be carried out. Microscopic paint fragments can be prepared for examination, which are then studied using a microscope at magnifications of up to 500x, both with visible light and with ultraviolet radiation. In this way insight can be gained into the structure and composition of paint layers and coatings and the nature of the pigments and binding materials can be determined. For medium analysis micro-chemical tests can also be conducted. Fibre analysis focuses on the identification of support materials such as paper, wood and textile. Here too, the microscope is used, and unknown samples are compared to sample collections of known materials.