The number of damages caused by biogenic sulfuric acid corrosion (BSA) is increasing. The development of materials resistant to BSA requires testing methods that allow for a testing of the materials that is both oriented towards practice and accelerated. To achieve this, test rigs were setup at Fraunhofer UMSICHT. In cooperation with the University of Duisburg-Essen (Dept. of Chemistry, Biofilm Centre, Prof. Dr. Wolfgang Sand), weathering tests were conducted to assess the BSA resistance of materials. The results provided indications for a targeted optimization and further development of the materials.