BHMA A156-30:2014 pdf download.AMERICAN NATIONAL STANDARD FOR HIGH SECURITY CYLINDERS
1.SCOPE
1.1 BHMA A156-30 includes security performance based requirements for both mechanical and electrified high security cylinders. For the purpose of this Standard, High Security Cylinder includes mechanical lock cylinders, electromechanical cylinders, and the electronic lock sub assemblies that are analogous to the cylinder assemblies. Cylinders include their keys or electronic credentials; their detainers (mechanical pins, levers, discs) or electronic control device; and their cylinder tailpiece or cam or electronic output port.
1.2 Tests described in this Standard are performed under laboratory conditions. In actual usage,results vary because of installation, maintenance and environmental conditions.
1.3 Levels and Grades
1.3.1 Levels Manufacturers shall indicate the high security level of their cylinders. Cylinders shall meet all the tests for their level listing, indicated in accordance with Section 8. Levels indicate special security features and are separate from Grades. A lockset mated with a cylinder having no Grade listing, even though the cylinder has a high security level is considered ungraded.
1.3.2 Grades To obtain cylinder Grade listings, and for the mating lock to retain its Grade listing,cylinders must be tested in accordance with ANSI/BHMA A156.5 for Auxiliary Locks and Associated Products. Assemblies take the grade of the lowest graded component. Electrified products shall also meet the requirements of A156.25 for Electrified Locking Devices to obtain a grade listing.
2.DEFINITIONS
2.1 Audit Trail A retrievable, recorded chronology of the individual valid keys inserted into the electrified cylinder; may also include invalid keys.
2.2 Biometrics A method to identify a user from within a population of possible users, according to a characteristic, or multiple characteristics which can be reliably associated with a particular individual,without an identity being explicitly claimed by the user.
2.3 Cam In this Standard, a component fastened to the back of a mortise cylinder plug or mortise cylinder turmn. When rotated, it engages the lock mechanism.
2.4 Controlling Device A device which processes the input signal and gives instructions to the output device to perform certain functions.
2.5 Credentials The key media containing the combination code that identifies a user.
2.9 Effective Changes Differences between cylinders of similar designs, achieved only by the movable detainer, which allows each cylinder to be operated only by its own key. The number of effective changes is equal to the number of theoretical changes after deduction of the changes suppressed by the manufacturer due to technical constraints. Also called differs.BHMA A156-30 pdf download.