BHMA A156-14:2007 pdf download.AMERICAN NATIONAL STANDARD FOR SLIDING AND FOLDING DOOR HARDWARE SPONSOR
1.SCOPE
1.1 This Standard establishes requirements for Sliding and Folding Door Hardware. Cycle tests, abuse,durability static load, smoothness, static friction, kinetic friction and finish tests are included. Hardware for light to very heavy doors is covered including both residential and industrial applications.
1.2 Fire doors equipped with sliding door hardware shall successfully pass the requirements of ANSI/UL 10B or 10C. ANSI/UL 14B specifies requirements for sliding door hardware used on sliding type fire doors.
1.3 Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because of installation, maintenance and environmental conditions.
1.4 All dimensions which do not cary specific tolerances or are not marked maximum or minimum are permitted to have nominal deviations. Dimensions are given in US units. SI unit (metric) equivalents given in parentheses are approximate.
1.5 ANSI Standards referenced in this Standard are available from the BHMA website www .buildershardware.com or the American National Standards Institute, 11 West 42nd Street, New York, NY 10036.
3.TEST PROCEDURES
3.1 Purpose Tests are established to determine the smoothness of operation, force required to overcome static friction, durability of the hardware and the ability to maintain adjustments.
3.2 Necessary Equipment for Performance Testing Provide appropriate height doors for a standard 6 ft 8 in (2032 mm) high opening a maximum width for which the hardware is recommended in a prepared opening (see 3.3), the hardware to be tested, an accurate scale, hand tools as required, door weights, actuators for operating doors (see Figures 1 through 5) and a cycle counter.
3.3 Preparing the Opening
3.3.1 Provide a structurally sound finished opening to the sizes specified by the manufacturer of the hardware to be tested. Brace opening to prevent any movement.
3.3.2 The jambs of this opening shall be plumb and parallel and at right angles to the header. Where applicable, the threshold or bottom track shall be level so as not to interfere with the operation of the doors.
3.4 Preparing the Doors Place the doors on the scale one at a time and add enough weight to each door to make its total weight equal to the rating of the hardware. The weights shall be added to locate the center of gravity at the geometrical center of the rectangular door. The weights shall be firmly attached to the doors to prevent their movement as doors open and close. It is permitted to seal and finish doors and frames to minimize warping.BHMA A156-14 pdf download.