1、ANSI/BHMA A156.41-2017 STANDARD FOR DOOR HARDWARE SINGLE MOTION TO EGRESS SPONSOR BUILDERS HARDWARE MANUFACTURERS ASSOCIATION, INC. Approved by the AMERICAN NATIONAL STANDARDS INSTITUTE December 12, 2017 AMERICAN NATIONAL STANDARD An American National Standard implies a consensus of those substantia
2、lly 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 not in any respect preclude anyone, whether he has approved the Standard or not, from ma
3、nufacturing, 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 latest editions. CAUTION NOTICE: This American National Standard is permitted to be revised
4、 or withdrawn at any time.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. Purchasers of American National Standards receive current information on all stand
5、ards 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 Manufacturers Association, Inc. Not to be reproduced without specific authoriza
6、tion 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 using the Canvass Method. FOREWORD (This Foreword is not a part of ANSI/BHMA A156
7、41) 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. This Standard is the result of the collective efforts of members of the Builders Hardw
8、are Manufacturers Association, Inc. who manufacture these products. The total product standards effort is therefore, a collection of sections, each covering a specific category of items. Strength, cycle, operational tests and where it has been necessary, material and dimensional requirements have be
9、en established to insure safety and stability to which the public is entitled. There are no restrictions on design except for those dimensional requirements imposed for the reasons given above. This Standard is not intended to obstruct but rather to encourage the development of improved products, me
10、thods and materials. The BHMA recognizes that errors will be found, items will become obsolete, and new products and methods 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 manufacture
11、rs to request such appropriate revisions. 1. SCOPE 1.1 This standard describes requirements for doors and door hardware to comply with Code Requirements for single operation egress. 1.2 Tests described in this Standard are performed under laboratory conditions. In actual usage, results vary because
12、of installation, door and frame construction, maintenance and environmental conditions. 2. DEFINITIONS 2.1 Single Operation Egress To allow a door to be opened for passage by releasing all latch and locking mechanisms on a door with one motion in a single linear or rotational direction using only on
13、e hand and without the use of a key, a tool, or special knowledge or effort. 2.2 Unlatch Single term used to encompass release of all latches, bolts, or other components used to hold the door in a closed position. 2.3 Lockset Single term used to encompass door hardware such as exit devices, cylindri
14、cal locks, mortise locks, electromagnetic locks and push/pull operators. 3. GENERAL TEST PARAMETERS 3.1 Failure of the test fixture does not constitute pass or failure of the tests. 3.2 Mounting locks The test equipment shall permit installation of the complete lockset with trim in accordance with t
15、he manufacturers recommendations as described in the template and instruction sheets regularly furnished. Unless otherwise specified, locksets shall be properly mounted in accordance with the manufacturers instructions. The lock front-to-strike spacing shall be 1/8 in. +/- 1/32 (3.2 +/- 0.8 mm) at c
16、enterline of bolt for all tests. 3.3 Tests shall be made using standard sets. Complete instructions and templates shall be included. One sample required. 3.4 Measuring Equipment All instruments and equipment used to conduct tests for recording data need to be calibrated and maintained for effectiven
17、ess and continued accuracy. Calibration of equipment shall be traceable to the National Institute of Standards and Technology (NIST). The frequency of calibration depends on the recommendation of the particular test equipment manufacturer with a minimum being once per year. Measuring equipment used
18、shall have a known measurement error and be capable of qualifying the value being measured. 4. REQUIREMENTS FOR SINGLE OPERATION EGRESS FOR HARDWARE 4.1 Rotational Release (Lever/Knob/Turn etc.) Procedure Mount the lockset on the door. Using a protractor, measure the degrees of rotation until the ha
19、rdware is unlatched. Requirements A single operation of less than 90 of rotation shall allow the door to be opened. Push/Pull Release (Push Pad, Bar, Paddle, Pull etc.) Procedure Mount the lockset on the door. Push or pull until the hardware is unlatched. Requirements The single push or pull operation shall allow the door to be opened. 5. REQUIREMENTS FOR SINGLE OPERATION EGRESS FOR DOORS 5.1 For a door to meet requirements for single operation egress, it shall not have more than one single operation release hardware device.
