1、CAN/CGSB-44.232-2008Supersedes CAN/CGSB-44.232-2002Task Chairs for Office EnvironmentsICS 97.140National Standard of CanadaThe CANADIAN GENERAL STANDARDS BOARD (CGSB), under whose auspices this National Standard of Canada has been developed is a government agency within Public Works and Government S
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8、vailable. More information is available about CGSB products and services at our Web site www.ongc-cgsb.gc.ca. Although the intended primary application of this standard is stated in its Scope, it is important to note that it remains the responsibility of the users of the standard to judge its suitab
9、ility for their particular purpose. The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its use. Anyone using this standard has the re
10、sponsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use. CGSB neither assumes nor accepts any responsibility for any injury or damage that may occur during or as the resul
11、t of tests, wherever performed. Attention is drawn to the possibility that some of the elements of this Canadian standard may be the subject of patent rights. CGSB shall not be held responsible for identifying any or all such patent rights. Users of this standard are expressly advised that determina
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17、d. It normally is a standard, which is capable of making a significant and timely contribution to the national interest. Those who have a need to apply standards are encouraged to use NSCs. These standards are subject to periodic review. Users of NSCs are cautioned to obtain the latest edition from
18、the SDO, which publishes the standard. The responsibility for approving standards as National Standards of Canada rests with the: Standards Council of Canada 200-270 Albert Street Ottawa, Ontario K1P 6N7 How to order Publications: by telephone 819-956-0425 or 1-800-665-2472 by fax 819-956-5740 by ma
19、il CGSB Sales Centre Gatineau, Canada K1A 1G6 in person Place du Portage Phase III, 6B1 11 Laurier Street Gatineau, Quebec by email ncr.cgsb-ongcpwgsc.gc.ca on the Web www.ongc-cgsb.gc.ca NATIONAL STANDARD OF CANADA CAN/CGSB-44.232-2008Supersedes CAN/CGSB-44.232-2002TASK CHAIRS FOR OFFICE ENVIRONMEN
20、TSCETTE NORME NATIONALE DU CANADA EST DISPONIBLE EN VERSIONSFRANAISE ET ANGLAISE.NATIONAL STANDARD OF CANADA CAN/CGSB-3.14-2006Prepared by the Approved by the Canadian General Standards Board Standards Council of CanadaPublished December 2008 by the Canadian General Standards Board Gatineau, Canada
21、K1A 1G6 HER MAJESTY THE QUEEN IN RIGHT OF CANADA, as represented by the Minister of Public Works and Government Services, the Minister responsible for the Canadian General Standards Board, (2008). No part of this publication may be reproduced in any form without the prior permission of the publisher
22、.CANADIAN GENERAL STANDARDS BOARDCOMMITTEE ON OFFICE CHAIRS(Voting membership at date of approval)ChairmanDeluca, G. CAF Contract SeatingGeneral Interest CategoryComtois, M. Micom Laboratories Inc.Driscoll, R. Business and Institutional Furniture Manufacturers AssociationIshag, S. Bodycote Testing G
23、roupJantz, J. Entela Laboratories Inc.Simon, T. Tanda Laboratories Inc.Stables, L. Workplace Safety and Insurance BoardProducer CategoryBouthillier, J. Bounty Inc.Carmona, P. Correctional Services Canada (CORCAN)Choo, C. Teknion Furniture SystemsDubuis, M. Steelcase Inc.Dykstra, T. Haworth Inc.Masch
24、erin, E. Dauphin Office Seating Inc.Parratt, B. The Global GroupRuster, R. Herman Miller Inc.Turco, D.F. Harts Upholstered Products Co Ltd.User CategoryBach, A. Canada Revenue AgencyCook, B. City of EdmontonDenault, J. Industry CanadaDewling, D. Government of Newfoundland and LabradorGerrard, K. Cit
25、y of TorontoGitt, M. ConsultantSellers, J. Public Works and Government Services Canada/Furniture DivisionSecretary (Non-member)Khan, R. Canadian General Standards BoardAcknowledgment is made for the translation of this National Standard of Canada by the Translation Bureau of Public Works and Governm
26、ent Services Canada.CAN/CGSB-44.232-2008CAN/CGSB-44.232-2008 1CAN/CGSB-44.232-2008Supersedes CAN/CGSB-44.232-2002CANADIAN GENERAL STANDARDS BOARDTASK CHAIRS FOR OFFICE ENVIRONMENTS1. SCOPE1.1 This standard specifies test methods for measuring task chairs for office work environments and assessing th
27、eir performance.1.2 This standard also provides dimensional and adjustment requirements that respect generally accepted ergonomics guidelines such as those of CAN/CSA-ISO 9241-5-00, using NATICK/TR-89/044, 1988 as the source of anthropometric data.1.3 The dimensional and adjustment requirements aim
28、to address the estimated needs of the 5th to 95th percentile of adult office workers when in the seated position.1.4 Quantities and dimensions used in this standard are given in metric units with imperial equivalents shown in brackets where appropriate. The metric units shall be regarded as official
29、 in the event of dispute.1.5 This document contains requirements for chair dimensions and features that are based on the widely accepted ergonomics practices, along with the best practices and knowledge of the committee members. These dimensions and features are complex and if not specified correctl
30、y, some combinations thereof, while meeting the requirements of the standard, may result in task chairs that are inappropriate for some uses or users. It is important for the users of this standard to understand the task(s) to be performed by the chairs user along with the individuals dimensional ne
31、eds when specifying dimensions and option features given in this standard. 1.6 The testing and evaluation of a product against this standard may require the use of materials and/or equipment that could be hazardous. This document does not purport to address all the safety aspects associated with its
32、 use. Anyone using this standard has the responsibility to consult the appropriate authorities and to establish appropriate health and safety practices in conjunction with any applicable regulatory requirements prior to its use.2. REFERENCED PUBLICATIONS2.1 The following publications are referenced
33、in this standard:2.1.1 Canadian Standards Association (CSA)CAN/CSA-ISO 9241-5-00: Ergonomic Requirements for Office Work with Visual Display Terminals (VDTs) Part 5: Workstation Layout and Postural Requirements.2.1.2 American National Standards Institute (ANSI)/BIFMA InternationalANSI/BIFMA X5.1-200
34、2 General-Purpose Office Chairs Tests.2.1.3 Association for Contract Textiles (ACT) Voluntary Performance Guidelines, January 2005.2.1.4 ASTM InternationalD 3574-05 Standard Test Methods for Flexible Cellular Materials Slab, Bonded, and Molded Urethane Foams.2 CAN/CGSB-44.232-20082.1.5 BIFMA Interna
35、tionalCMD-1-2002 Universal Measurement Procedure for the Use of the BIFMA Chair Measuring Device (CMD).2.1.6 California Department of Consumer AffairsCalifornia Technical Bulletin 117, March 2000 Requirements, Test Procedure and Apparatus for Testing the Flame Retardance of Resilient Filling Materia
36、ls Used in Upholstered Furniture. 2.1.7 U.S. Army NATICK Research, Development and Engineering CenterNATICK/TR-89/044, 1988 Anthropometric Survey of U.S. Army Personnel: Methods and Summary Statistics. 2.2 A dated reference in this standard is to the issue specified. An undated reference in this sta
37、ndard is to the latest issue, unless otherwise specified by the authority applying this standard. The sources are given in the Notes section.3. TERMINOLOGY3.1 The definitions in BIFMA CMD-1-2002 apply in this standard.4. GENERAL REQUIREMENTS4.1 Tolerances Unless otherwise specified, tolerances shall
38、 be as follows:a. Test weights, 5%b. Forces, velocities and time, 5%c. Linear measurements, 1.5 mm (1/16 in.)d. Angles, 5e. Levels, within 5 mm per metre (1/16 in. per linear foot)f. Cycles, all requirements are minimums.4.2 Workmanship The finished task chair shall be uniform in quality, clean and
39、free from any defects that may affect its appearance and serviceability. The external surfaces shall be smooth, and all edges shall be rounded or bevelled. All accessible surfaces shall be free from sharp edges, burrs and any other safety hazards. The upholstery shall be properly positioned, clean a
40、nd well tailored in appearance. All excess upholstery material shall be neatly trimmed. Fastening devices, such as staples, shall not be visible under normal use of the task chair. The undersurface of the seat shall be finished without exposed edges.4.3 Environmental Considerations The task chairs s
41、hould be designed, and the materials should be selected, to minimize waste and environmental impact both during the production process and in the post-consumer stages.The task chairs should be designed to allow the disassembly of major components to accommodate reuse or recycling of materials for wh
42、ich there are proven recycling markets. The metal and the plastic components of a product should be composed of recycled materials whenever possible. Where possible, all major plastic components should be identified with a composition code to facilitate recycling.4.4 Controls The seat height and use
43、r-adjusted chair tilt tension shall be adjustable while the user of the task chair is seated, semi-seated or standing with the task chair in the upright position. The controls for all other user-adjusted mechanisms shall be accessible by the seated user. All user-adjusted controls shall require a po
44、sitive action to operate and be positioned where they cannot be activated inadvertently under normal use.4.5 Tilt mechanisms Task chairs shall be available with or without tilt mechanisms as specified (par. 9.1 a.). Tilt mechanisms shall be equipped with a tilt tension control. CAN/CGSB-44.232-2008
45、34.6 Armrests Task chairs shall be available with or without armrests as specified (par. 9.1 b.). When specified (par. 9.1 b.), the armrests shall be removable. Removable armrests shall be detachable using commonly available tools. 4.7 Column The seat shall rotate independently of the base. 4.8 Cast
46、ers The casters shall be available for use on hard or carpeted surfaces as specified (par. 9.1 c.).4.9 Seat and Backrest Locks The seat and backrest shall be lockable in at least the chair set-up position as determined using BIFMA CMD-1-2002. Alternatively, the seat and backrest may be lockable or s
47、toppable at multiple positions within the adjustment ranges as specified (par. 9.1 d.).4.10 Seat Height The seat height shall be adjustable. 5. DETAILED REQUIREMENTS 5.1 Performance Requirements The task chairs shall pass the applicable tests and acceptance levels specified in ANSI/BIFMA X5.1-2002.5
48、.2 Flammability All applicable components shall comply with the requirements of California Technical Bulletin 117, March 2000.5.3 Cushioning Material When foam-cushioning materials are used in the seat and backrest, they shall be expanded flexible urethane foam of flat slab, sculpted slab or moulded
49、 construction. These foam materials shall be tested in accordance with the specified test methods and shall comply with the requirements of Table 1.TABLE 1Cushioning Material Properties Test Method ASTM D 3574-05RequirementsHR I (High Resilience) (Backrest)HR II (High Resilience) (Seat)Indentation force deflection (IFD) at 25% IFD, N, min.Test B1, Sections 16 to 22 89 N (20 lbf.) 106 N (24 lbf.)Support factor, 65% IFD/25% IFD, min.Test B1, Sections 16 to 22 1.8 2.3Dynamic fatigue test by constant force pounding, loss of f