This Standard specifies general design criteria, performance requirements, and procedures for testing mechanical locksets and latchsets for their resistance to forced or unauthorized entry and efficiency under conditions of light to heavy usage.

This Standard covers locksets for typical doorways, such as wooden, glass or metal-hinged swinging doors or sliding doors in residential and business premises, including public buildings, warehouses and factories. Requirements for both the lock and associated furniture are included.

Certain areas requiring higher level locking devices (e.g., locking bars, electronic locking devices, detection devices, alarms) are not covered by this Standard.

The Standard also includes performance requirements for cylinders supplied separately for installation in locksets and corrosion resistance requirements.