BHMA Issues Revised Standards for Exit Devices, Door Controls, Closers, Auxiliary Hardware
November 24, 2008 // Published as a news service by IHS
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The Builders Hardware Manufacturers Association (BHMA) published three revised American National Standards Institute (ANSI) standards targeted at exit devices, door controls and closers and auxiliary hardware.
ANSI/BHMA A156.3 for Exit Devices establishes requirements for exit devices and trim, automatic and self-latching flush bolts, removable mullions, coordinators and carry-open bars.
The updated standard includes tightening the operational key torque value to 12 in-lbf; adding electrified exit device functions and adding definitions for dogging, electric dogging, mullions and multipoint exit devices and unlatches. T
his publication is an update of a 2001 version of the standard.
ANSI/BHMA A156.4 for Door Controls – Closers contains requirements for door closers surface mounted, concealed in the door, overhead concealed and concealed in the floor. Also included are pivots for floor closers. Whole scale reformatting was done to reduce cross references and clarify test sequences for each type of closer.
Changes to ANSI/BHMA A156.4 include improving floor marking template diagrams, clarifying the door weight table by showing ranges, revising leakage failure criteria, adding a dead stop test procedure based on A156.8 for stops and holders and clarifying the requirements for range of closing motion. This publication is an update of a 2000 version of the standard.
ANSI/BHMA A156.16 for Auxiliary Hardware establishes requirements for auxiliary hardware. The updated standard includes updated product type illustrations, revised shower curtain rod test requirements and moving the location of the door stop in the cycle test to across the middle hinge. This publication is an update of a 2002 version of the standard.
Source: Builders Hardware Manufacturers Association (BHMA).