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 monitoring facilities 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. This document includes assessment of additional features when they are included in the cylinder design. This document does not cover any other element of a security system, other than those directly involved in the control of a cylinder. 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 document (see Annex A).