1、 1 ANSI/BHMA A156.22-2017 Revision of BHMA A156.22 - 2012 AMERICAN NATIONAL STANDARD FOR DOOR GASKETING and EDGE SEAL SYSTEMS SPONSOR BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. AMERICAN NATIONAL STANDARDS INSTITUTE Approved June 19, 20172 AMERICAN NATIONAL STANDARDS INSTITUTE, INC. AMERICAN N
2、ATIONAL STANDARD An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An American National Standard is intended as a guide to aid the manufacturer, the consumer and the general public. The existence of an American National Standard does no
3、t in any respect preclude anyone, whether he has approved the Standard or not, from manufacturing, marketing, purchasing, or using products, processes, or procedures not conforming to the Standard. American National Standards are subject to periodic review and users are cautioned to obtain the lates
4、t editions. CAUTION NOTICE: This American National Standard may be revised or withdrawn at any time. The procedures of the American National Standards Institute require that action be taken to reaffirm, revise, or withdraw this Standard no later than five years from the date of publication. Purchase
5、rs of American National Standards may receive current information on all Standards by calling or writing the American National Standards Institute. Published by BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. 355 Lexington Avenue, New York, New York, 10017 Copyright 2017 by the Builders Hardware M
6、anufacturers Association, Inc. Not to be reproduced without specific authorization from BHMA Printed in the USA This Standard was developed by the Builders Hardware Manufacturers Association, Inc. It was approved by ANSI under the Canvass Method. BHMA was accredited on 21 March 1983 as a sponsor us
7、ing the Canvass Method. 3 FOREWORD (This Foreword is not a part of ANSI/BHMA A156.22) The general classification of builders hardware includes a wide variety of items which are divided into several categories. To recognize this diversity, a sectional classification system has been established. Door
8、Gasketing Systems is one such sub section and this Standard is a result of the collective efforts of members of the Builders Hardware Manufacturers Association, Inc. who manufacture this product. The total Product Standards effort is, therefore, a collection of sections, each covering a specific cat
9、egory of items. Performance tests have been established to ensure safety and stability to which the public is entitled. There are no restrictions on design. This Standard is not intended to obstruct but rather to encourage the development of improved products, methods and materials. The BHMA recogni
10、zes that errors will be found, items will become obsolete, and new products, methods and materials will be developed. With this in mind, the Association plans to update, correct and revise these Standards on a regular basis. It shall also be the responsibility of manufacturers to request such approp
11、riate revisions. The BHMA numbers which indicate functions of gasketing do not identify size or design and are not intended to be used without necessary supplementary information. Individual manufacturers catalogs are to be consulted. 4 TABLE OF CONTENTS 1. SCOPE . 5 2. DEFINITIONS . 5 3. GENERAL 6
12、4. TEST EQUIPMENT 6 5. TEST PROCEDURES FOR ALL GASKETS . 9 6. TEST PROCEDURES FOR NON INTUMESCENT GASKETS ONLY 11 7. TESTS FOR INTUMESCENT MATERIALS ONLY 12 8. CYCLE TEST FOR AUTOMATIC DOOR BOTTOMS 13 9. TYPE NUMBERS AND APPLICATIONS. 15 10. EXPLANATION OF THE NUMBERING SYSTEM 18 APPENDIX A USERS GU
13、IDE (NOT PART OF ANSI/BHMA A152.22) 20 5 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
14、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 inst
15、allation, maintenance and environmental conditions. 2. DEFINITIONS 2.1 Applied The gasketing is installed onto a door or frame or both in the field. 2.2 Astragal(s) One or more elements applied to the meeting stile(s) to cover or seal the gap between a pair of doors. 2.3 Automatic Door Bottom A mech
16、anical device to seal the space between the door and the floor or threshold upon closing, for purposes such as reducing air infiltration or sound transmission. Also called a “drop seal”. 2.4 Closer A spring powered device having a controlling means used to close a door. 2.5 Combination Intumescent G
17、asket A product comprised of both intumescent material and other gasketing materials. 2.6 Edge Seal Systems Listed products that may be required by the door manufacturers installation instructions to provide protection to the perimeter and meeting edge of doors and door frames, to prevent the flow o
18、f 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. 2.8 In
19、tegral The gasketing is incorporated in a door or frame or both during the manufacturing process. 2.9 Intumescents A range of materials that expand in volume when exposed to heat or flame. 2.10 Kerf A cut or channel produced by a tool. 2.11 Latch Bolt A lock component having a beveled end which proj
20、ects 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 so
21、me gasketing types providing a means of holding the gasketing material. Is allowed to have flanges to facilitate mounting or serve as a housing for other components. May also be called a housing. 2.13 Strike A plate fastened to the door frame into which the bolts project. 6 3. GENERAL 3.1 Values. Re
22、quired values in this Standard are given in U.S. units. SI (metric) equivalents are shown in parentheses and are approximate. 3.2 ANSI Standards referenced in this Standard are available from the American National Standards Institute, 11 West 42nd Street, New York, NY 10036 or . ASTM Standards are a
23、vailable from ASTM, 100 Barr Harbor Dr., W. Conshohocken, PA 19428-2959 3.3 Gasketing applied to fire door assemblies shall be in accordance with the requirements of the Standard ANSI/NFPA 80 for Fire Doors and Windows. The gasketing shall be listed by a nationally recognized testing laboratory and
24、be under an in-plant follow-up inspection service. 3.4 Reference Standards ANSI/BHMA A156.1-2013 for Butts and Hinges, ANSI/BHMA A156.2- 2011 for Bored and Preassembled Locks, ANSI/NFPA 80-2016 for Fire Doors, ASTM E283-2004 Standard Test Method for Determining Rate of Air Leakage, and Windows, UL17
25、84-2009 Air Leakage Test of Door Assemblies. 3.5 Gasketing may be grouped into three categories based on where it is applied: Bottom of door, Meeting Stile, and Perimeter (applied to either a door at the stiles and top rail, or to a frame at the jambs and header). 4. TEST EQUIPMENT 4.1 Test Door Pro
26、vide a structure to support a standard 18 gauge steel door and a standard 16 gauge steel door frame. The door(s) shall be 36 in x 84 in x 1 3/4 in (914 x 2134 x 44 mm) nominal with an 1/8 in (3.175 mm) per 2 in (50.8 mm) bevel both edges. For testing astragals on pairs of doors, the inactive leaf sh
27、all be held in position, with a gap between the meeting edges of the pair measuring 1/8 in +/- 1/16in (3.175 mm +/- 1.587 mm). Air leakage rates for perimeter and meeting edge seals are permitted to be tested separately, and added together to represent the assembly. Where required by the application
28、 and approved by the test lab, doors of other materials may be substituted provided the setup results in equivalent conditions and meets manufacturers installation specifications. Adjust the frame before installing the door so that it is level, plumb and square within 1/32 in (0.8 mm). The door shal
29、l 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 located at 40 in (1016mm) plus or minus 2in. (50.8mm) from the finished floor. The lockset shall mee
30、t 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 doo
31、r 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 measur
32、ements from the high side of the bevel. See figure below. Location Inches (mm) Hinge Edge .062 .032 (1.6 0.8) Top a 10 in (254.0 mm) long section of kerfed frame representing the manufacturers instructions. 7.1.4 Thickness The thickness of each sample shall be measured in four random places using an
33、 electronic or dial non-rotating spring type disc micrometer with an accuracy of +/- 0.001 in. The thickness will be determined when the disc just touches the surface of the sample. The average of the four readings shall be recorded. Samples having adhesive backing shall have the release liner remov
34、ed. 7.1.5 Width The width of each sample shall be randomly measured in four places along the length in the center of the sample. The average of the four readings shall be recorded. 7.1.6 Length The length of each sample shall be measured to the nearest 0.01 in using a precision steel rule or Vernier
35、 caliper. The length shall be recorded. 7.2 Environmental Testing 7.2.1 Artificial Weathering Testing Four samples in accordance with Section 7.1 shall be exposed in vertical orientation for 504 hours in accordance with the following cycle; 4 hours at 0 degrees F +/- (-18 C +/- 2), 4 hours at +68 de
36、grees F +/- 5 (20 C +/- 2) and 95 +/- 5% relative humidity, and 16 hours at +122 degrees F +/- 5 (50 C +/- 2) and 50% relative humidity. This test sequence takes 504 hours and there shall be no interruption in the test cycle. 7.2.2 Heat Exposure Testing Four samples in accordance with Section 7.1 sh
37、all be exposed in vertical orientation for 504 hours at a temperature of 131degrees F +/- 5 (55 C +/- 2). There shall be no interruption in the test cycle. 7.2.3 Paint Coating Exposure Testing Four sets of four samples each in accordance with Section 7.1 are required for this test procedure. Each se
38、t is to be coated by a dipping process only covering the three normally exposed surfaces for one minute with one coat of the following four pigmented types of paint: emulsion on PVAc base, alkyd 13 resin, acrylic polyurethane, or epoxy resin (commonly available). After coating the samples shall be d
39、ried at 70 to 85 degrees F (21 to 29.5C) and 50% relative humidity for a period of 504 hours. There shall be no interruption in the test cycle. 7.2.4 Solvent and Oil Exposure Testing Three sets of four samples each in accordance with Section 7.1 are required for this test procedure. Each set is to b
40、e immersed for two minutes into one of the following three types of solvents: heating oil, butyl alcohol, or mineral spirits. After immersion the samples shall be stored at 70 degrees F +/- 3 (21 C +/- 1) and 50% relative humidity for a period of 504 hours. There shall be no interruption in the test
41、 cycle. 7.3 Evaluation of Test Results 7.3.1 Visual Examination All samples subjected to environmental testing shall be visually compared to untested samples to determine if any change has occurred that might impair the function of the intumescent materials such as effervescence, bleeding, dissoluti
42、on, or changes in shape and color. The results are to be recorded. 7.3.2 Size Examination All samples subjected to environmental testing shall be re-measured at the conclusion of testing. The results shall be recorded and any change shall be calculated and recorded as a percentage, marked as an incr
43、ease or decrease in value. Requirement The increase or decrease in size shall not exceed 5%. Intumescent Materials Tests Refer to Appendix Section A-16 for sequence chart for testing Intumescent Materials. 8. CYCLE TEST FOR AUTOMATIC DOOR BOTTOMS 8.1 Specimen Preparation and Measurement Install spec
44、imen per manufacturers installation instructions on a full door or simulated door section, above a sealing surface with a smooth top and a flat 1 landing surface, allowing for the operation of a 3/8 in (9.525 mm) drop on a 36 in (914.4 mm) wide specimen. The automatic door bottom shall maintain 90%
45、minimum linear contact with the sealing surface as determined using a light source and a visual inspection. Ensure the test rig is capable of repeated testing without distortion or wear that could influence the results. Hinge and door wear shall be excluded from the results. Requirement The force to
46、 engage the door bottom upon closing shall not exceed 10 lbf. 14 FIGURE 2 8.2 Cycles A cycle is comprised of opening the door to 30 degrees to reset then closing the door to trigger the door bottom actuator at a rate of 15 cycles +/- 5 cycles per minute. Where agreed upon by the manufacturer and lab
47、, the cycle rate may be increased pending verification that all cycling aspects are maintained. 8.3 Permitted Adjustments During testing, the door bottom shall be checked approximately every 100,000 cycles and adjusted, if necessary per the manufacturers instructions to maintain contact with the sea
48、ling surface per 8.1. 8.4 Evaluation of Results Following the required cycles, the automatic door bottom shall retain its adjustability and may be adjusted as necessary to maintain contact with the sealing surface per 8.1. The door bottom shall continue to operate with a maximum force of 10 lbf., in
49、 accordance with 8.1. Required cycles Grade 1 Grade 2 Grade 3 1,000,000 500,000 250,000 15 9. TYPES AND TYPICAL APPLICATIONS 9.1 Head and jamb type. Encased in a retainer. Applied to frame stop. 9.2 Head and jamb type, adjustable. Encased in a retainer. Applied to frame stop. 9.3 Head and jamb type, self adhesive Applied to the frame rabbet. 9.4 Head and jamb type metallic spring, Applied to frame rabbet. 9.5 Head and jamb type magnetic, Encased in a retainer. Applied to door frame stop or door face. 9.6 Head and
