BHMA-A156.8-2000.pdf
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1、ANSI/BHMA Al 56,8 2000 I Hardware & Specialties 08700 American National Standard Institute 11 West 42nd Street, New York, NY 10036 Copyright Builders Hardware Manufacturers Association Inc. Provided by IHS under license with BHMA Not for ResaleNo reproduction or networking permitted without license
2、from IHS -,-,- ANSVBHMA A156.8-2000 Revision of: ANSVBHMA A156.8-1994 AMERICAN NATIONAL STANDARD FOR DOOR CONTROLS - OVERHEAD STOPS AND HOLDERS SPONSOR BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. Approved July 14,2000 AMERICAN NATIONAL STANDARDS INSTITUTE, INC. Copyright Builders Hardware Manu
3、facturers Association Inc. Provided by IHS under license with BHMA Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- AMERICAN NATIONAL STANDARD An American National Standard implies a consensus of those substantially concerned with its scope and provisions. An Amer
4、ican National Standard is intended as a guide to aid the manufacturer, the consumer, and the general public. The existence of American National Standard does not in any respect preclude anyone, whether he has approved the standard or not, f r o m manufacturing, marketing, purchasing, or using produc
5、ts, processes, or procedures not conforming to the standard. American National Standards are subject to periodic review and users are cautioned to obtain the latest editions. CAUTION NOTICE: This American National Standard is permitted to be revised or withdrawn at any time. The procedures of the Am
6、erican National Standards Institute require that action be taken to reafrm, revise, or withdraw this standard no later than five years from the date of publication. Purchasers of American National Standards receive current information on all Standards by calling or writing the American National Stan
7、dards Institute. Published by BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. 355 Lexington Avenue, New York, NY 10017 Copyright O 2000 by the Builders Hardware Manufacturers Association, Inc. Not to be reproduced without specific authorization from B.H.M.A. Printed in the USA This standard was f
8、llst published June 1970 by the Builders Hardware Manuficturers Association, Inc. It was entitled “Standard 3 1 1 BHMA Product Standards Section C, Door Conkols - Overhead Holders.“ ANSI approval was secured under the Canvass Method. BHMA was accredited on 21 March 1983 by ANSI as a sponsor using th
9、e Canvass Method. 2 Copyright Builders Hardware Manufacturers Association Inc. Provided by IHS under license with BHMA Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- FOREWORD (This foreword is not a part of ANSI Al 56.8). The general classification of builders h
10、ardware includes a wide variety of items which are divided into several categories. To recognize this diversity, a sectional classification system has been established. Overhead Holders is one such section and this Standard is the result of the collective efforts of members of the Builders Hardware
11、Manufmrs Association who manufacture this product. The total Product Standards effort is, therefore, a collection of sections, each covering a specific category of items. Performance tests have been established to insure safety, securily and stability to which the public is entitled. There are no re
12、strictions on design except as required to suit the type of product desired. The BHMA recognizes that errors will be found, items will become obsolete, and new products, methods and material will be developed. With this in mind, the Association plans to update, correct and revise these Standards on
13、a reguiar basis. in most cases products have been described in grade levels related to performance. Grade classifications indicate levels only w i t h i n their own product category. Choice of grade and specific product should be made on the basis of utility, aesthetics, security objectives and end
14、use desired. The BHMA numbers, which indicate types of hardware do not identifj size or finish and are not intended to be used without necessary supplementary information. Individual manufacturers catalogs should be consulted. 3 Copyright Builders Hardware Manufacturers Association Inc. Provided by
15、IHS under license with BHMA Not for ResaleNo reproduction or networking permitted without license from IHS -,-,- CONTENTS SECTION PAGE 1 . General 1.1 Scope . 5 1.2 Definitions . 5 1.3 General Requirements . 5 2 . Performance Requirements 2.1 Test Procedures . 5 2.2 Cycle Test 6 2.3 Force Tests 6 .
16、3 . Finish Tests 7 4 . Overhead Holders Functions and . . Identifjmg Numbers 7 5 . Explanation of Numbering System . 9 Appendix A . 11 4 Copyright Builders Hardware Manufacturers Association Inc. Provided by IHS under license with BHMA Not for ResaleNo reproduction or networking permitted without li
17、cense from IHS -,-,- 1 . GENERAL 1.1 Scope 1.1.1 This Standard establishes requirements for overhead door stops and holders and includes performance tests covering operational, cyclical, strength and fuiish criteria. 1.1.2 Tests described in this Standard are performed under laboratory conditions. I
18、n actual usage, results vary because of installation, maintenance and environmental conditions. 1.2 Definitions (also see Section 4) 1.2.1 Overhead Holder. A device surface mounted or concealed at the top of a door with a connecting arm attached to the door fiame. It holds a door in a predetermined
19、open position or positions and also limits the opening up to 110 degrees. 1.2.2 Overhead Stops. A device surface mounted or concealed at the top of a door with a connecting a r m attached to the door frame which only limits the opening travel of a door. 1.3 General Requirements 1.3.1 Values. Require
20、d values in this Standard are given in US units. SI metric equivalents given in parentheses are approximate. Where tolerances are not indicated, values are subject to a f 2% tolerance. 1.3.2 Reference to ANSI Standards. ANSI Standards are available from the American National Standards Institute, 11
21、West 42nd Street, New York, NY 10036. 1.3.3 Tests Required. All Grades of stops and overhead holders are required to meet functional tests described in Section 2. All grades of overhead holders and stops are required to meet the applicable finish tests described in Section 3. 2. PERFORMANCE REQUIREM
22、ENTS 2.1 Test Procedures 2.1.1 All tests shall be performed on doors 36 in x 84 in x 1-3/4 in (914 mm x 2134 mm x 44 mm) of either wood or metal and weighing 150 lbs (68 kg). Use metal frames of heavy enough construction to withstand the abuse required by these tests. The center of gravity of the we
23、ighted door shall be 18 in (457 mm) from the center line of hinge or pivot. 2.1.2 Means for mechanically opening the door to the stop position and releasing and closing the door shall be provided for the tests. Opening speed shall be O to 90 degrees in 3 to 6 seconds. 2.1.3 Doors shall be hung on he
24、avy weight ball bearing hinges or pivots meeting Grade 1 requirements of ANSIBHMA Al 56.1 for Butts and Hinges. Force required to overcome friction or out of balance condition shall be a 1/4 lbf (1.1 N) or less measured in accordance with paragraph 2.1.4. 2.1.4 All forces shall be applied to the doo
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