BHMA A156-22:2012 pdf download.AMERICAN NATIONAL STANDARD FOR DOOR GASKETING and EDGESEAL SYSTEMS
1.SCOPE
1.1 This Standard establishes requirements for the performance and installation of gasketing systems including intumescents applied to, or mortised to doors, frames or both. Included are performance tests intended to evaluate resistance to smoke and air infiltration, energy performance, acoustic properties,and the life and durability of gasketing materials.
1.2 Requirements apply to factory or field installed materials.
1.3 Tests described in this Standard are performed under laboratory conditions. In actual usage,results vary because of installation, maintenance and environmental conditions.
2.6 Edge Seal Systems Listed products that may be required by the door manufacturer's installation instructions to provide protection to the perimeter and meeting edge of doors and door frames, to prevent the flow of hot gasses around the assembly in the event of fire. Commonly referred to as Category G listed sealing systems.
2.7 Gasketing Material applied to a door or frame for the purpose of reducing or sealing the clearances around a door, to reduce the passage of air, smoke, sound, light, or water.
2.11 Latch Bolt A lock component having a beveled end which projects from the lock front in an extended position but is forced back into the lock case by end pressure or drawn back by action of the lock mechanism. When the door is closed, the latch bolt projects into a hole provided in the strike, and holds the door in a closed position.
2.12 Retainer Part of some gasketing types providing a means of holding the gasketing material. Is allowed to have flanges to facilitate mounting or serve as a housing for others components. May also be called a housing.
4.1 Test Door Provide a structure to support a standard steel door and a steel door frame. The door shallbe36inx84inx13/4in(914x2134x44mm)withan1/8inchper2inchbevel.Adjustthe frame before installing the door so that it is level, plumb and square within 1/32 in (0.8 mm). The door shall be hung with three 4 1/2 x 4 1/2 in (114 x 114 mm) Grade 2 full mortise hinges meeting the requirements of ANSI/BHMA A156.1 for Butts and Hinges. Install a function F81 or F82 Grade 1 bored lockset meeting the requirements of ANSI/BHMA A156.2 for Bored and Preassembled Locks.The strike plate shall be in accordance with ANSI/BHMA A115 and mounted in the door frame so that when the door is closed and the latch bolt is engaged in the strike plate, a 1/16 in (1.6 mm) space is maintained between the door face and the stop on the frame. Check the alignment of the door in the frame and adjust as necessary by shimming the hinges so that the resulting gaps between the door and frame are parallel within 1/32 in (0.8 mm) and that the spacing is as follows, and as illustrated in Figure 1. Take the measurements from the high side of the bevel. See figure below.BHMA A156-22 pdf download.