The function of a sealed connection is significantly influenced by the performance of the seal. These properties can be characterized in the form of characteristic values which are crucial for the selection of suitable seals and the necessary proof of tightness and strength. Furthermore, characteristic values from seal manufacturers are necessary for quality assurance. Based on these requirements, we have developed a range of testing equipment by which the performance of seals can be precisely and cost-effectively determined. During the development of the test bench, the relevant standards and guidelines, as well as our many years of experience in the field of measurement technology, were taken into account.