This document specifies requirements for performance and testing of Mechatronic Cylinders and their keys and/or electronic keys. It applies to cylinders for such locks designed to be normally used in buildings. It also applies to cylinders for use with other hardware products such as exit devices, door operators, etc. or access control systems and alarm systems. It establishes categories of use based on performance tests and grades of security based on design requirements and on performance tests that simulate attack. Corrosion resistance shall conform to EN 1670:2007. On occasions there may be a need for additional functions within the design of the cylinder. Purchasers should satisfy themselves that the products are suitable for their intended use. This is particularly important when the operation of such additional functions is safety-related. Accordingly, this document includes assessment of such features when they are included in the cylinder design. This CEN document does not cover any other element of a security system, other than those directly involved in the control of a cylinder. It does not provide for any particular design of products. The suitability of cylinders for use on fire or smoke-door assemblies is determined by fire performance tests conducted in addition to the performance testing specified by this CEN document, see Annex A.