BHMA A156-3:2008 pdf download.AMERICAN NATIONAL STANDARD FOR EXITDEVICES
1.SCOPE
1.1 This standard establishes requirements for exit devices and trim, automatic and self-latching flush bolts, removable mullions, coordinators, and carry-open bars. Performance criteria include cycle,operational, strength, material evaluation, and finish tests.Functions and types are described and numbered.
1.2 Tests described in this standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.
2. GENERAL
2.1 All products certified to this standard shall be listed or labeled by a Nationally Recognized Testing Laboratory (NRTL) and be subject to periodic examination service.
2.2 Exit devices are available in Grades 1, 2, and 3 with grade 1 being the highest grade. AlI are suitable for all classes of buildings and are based on the performance tests listed. A Grade 1 exit device shall be furnished with all Grade 1 trim and cylinders, when supplied, in order to retain an overall Grade 1 rating.
A Grade 2 exit device shall be furnished with grade 2, or higher, trim and cylinder in order to retain an overall Grade 2 rating; and similarly for Grade 3 rating.
2.3 Door coordinators Type 21A are available in Grade 1 and 2. Door coordinators Type 21B are available in Grade 2. Both Grades are suitable for all classes of buildings and are based on performance tests listed.
2.4 Carry-open bars are available in Grades 1 and 2. Both are suitable for all classes of buildings and are based on the performance test listed. When coordinators are installed with carry-open bars, the Grade of the combination is the lower Grade of either component.
2.4 Carry-open bars are available in Grades 1 and 2. Both are suitable for all classes of buildings and are based on the performance test listed. When coordinators are installed with carry-open bars, the Grade of the combination is the lower Grade of either component.
2.5 All exit devices shall meet the requirements and performance tests found in Underwriters Laboratories, Inc. Standard UL 305 - Panic Hardware- 2004,2.6 The cycling requirements listed shall not be considered as being in addition to those required by UL305 but comprise the total required.
2.7 Values Required values in this Standard are given in US units. The SI (mtric) equivalents are approximate. AlI values which do not carry specific tolerances or are not marked maximum or minimum shall have the following tolerances: Linear dimensions shall be±1/16 in (1.6 mm). Pounds or pound force shall be±5%. Angular measurements shall be±4 degrees. V oltage measurements shall be±5 percent.Temperature measurements shall be±4 degrees F (±2 degrees C).
2.9 Reference to ANSI Standards ANSI Standards are available from the American National Standards Institute, 11 W. 42nd Stret, New York, NY 10036 or www buildershardware.com.
2.10 Related Standards ANSI/BHMA A156.1 for Butts and Hinges, A156.5 for Auxiliary Locks,A156.16 for Auxiliary Hardware, A156.18 for Materials and Finishes, A156.24 for Delayed Egress Devices, A156.25 for Electrified Locking Devices, A 156.29 for Exit Locks, Exit Alarms, Alarms For Exit Devices. Definitions of some other terms used in this Standard are found in ANSI/SDI A250.7 Nomenclature for Steel Doors and Steel Door Frames and ANSI/NFPA 80 Fire Doors and Windows.BHMA A156-3 pdf download.