1、National Standard of Canada CAN/CSA-IS0 9241 -4-00 CSA IN T E R N AT10 N A1 / . (IS0 9241 -41998) International Standard IS0 9241-41998 (first edition, 1998-08-01) has been adopted without modification as CSA Standard CAN/CSA-IS0 9241-4-00, which has been approved as a National Standard of Canada by
2、 the Standards Council of Canada. ISBN 1-55324-268-8 December 2000 Ergonomic requirements for off ice work with visual display terminals (VDTs) - Part 4: Key board requirements Exigences ergonomiques pour travail de bureau avec terminaux a ecrans de visualisation (TEV) - Partie 4: Exigences relative
3、s aux claviers Reference number IS0 9241-4:1998(E) The Canadian Standards Association, which operates under the name CSA International (CSA), under whose auspices this National Standard has been produced, was chartered in 191 9 and accredited by the Standards Council of Canada to the National Standa
4、rds system in 1973. It is a not-for-profit, nonstatutory, voluntary membership association engaged in standards development and certification activities. and users - including manufacturers, consumers, retailers, unions and professional organizations, and governmental agencies. The standards are use
5、d widely by industry and commerce and often adopted by municipal, provincial, and federal governments in their regulations, particularly in the fields of health, safety, building and construction, and the environment. indicate their support for CSAs standards development by volunteering their time a
6、nd skills to CSA Committee work and supporting the Associations objectives through sustaining memberships. The more than 7000 committee volunteers and the 2000 sustaining memberships together form CSAs total membership from which its Directors are chosen. Sustaining memberships represent a major sou
7、rce of income for CSAs standards development activities. in support of and as an extension to its standards development activities. To ensure the integrity of its certification process, the Association regularly and continually audits and inspects products that bear the CSA Mark. Toronto, CSA has re
8、gional branch offices in major centres across Canada and inspection and testing agencies in eight countries. Since 191 9, the Association has developed the necessary expertise to meet its corporate mission: CSA is an independent service organization whose mission is to provide an open and effective
9、forum for activities facilitating the exchange of goods and services through the use of standards, certification and related services to meet national and international needs. For further information on CSA services, write to CSA International 178 Rexdale Boulevard Toronto, Ontario, M9W 1 R3 Canada
10、CSA standards reflect a national consensus of producers Individuals, companies, and associations across Canada The Association offers certification and testing services In addition to its head office and laboratory complex in The Standards Council of Canada is the coordinating body of the National S
11、tandards system, a federation of independent, autonomous organizations working towards the further development and improvement of voluntary standardization in the national interest. The principal objects of the Council are to foster and promote voluntary standardization as a means of advancing the n
12、ational economy, benefiting the health, safety, and welfare of the public, assisting and protecting the consumer, facilitating domestic and international trade, and furthering international cooperation in the field of standards. has been approved by the Standards Council of Canada and one which refl
13、ects a reasonable agreement among the views of a number of capable individuals whose collective interests provide to the greatest practicable extent a balance of representation of producers, users, consumers, and others with relevant interests, as may be appropriate to the subject in hand. It normal
14、ly is a standard which is capable of making a significant and timely contribution to the national interest. Approval of a standard as a National Standard of Canada indicates that a standard conforms to the criteria and procedures established by the Standards Council of Canada. Approval does not refe
15、r to the technical content of the standard; this remains the continuing responsibility of the accredited standards-development organization. Those who have a need to apply standards are encouraged to use National Standards of Canada whenever practicable. These standards are subject to periodic revie
16、w; therefore, users are cautioned to obtain the latest edition from the organization preparing the standard, The responsibility for approving National Standards of Canada rests with the Standards Council of Canada 270 Albert Street, Suite 200 Ottawa, Ontario, K1 P 6N7 Canada A National Standard of C
17、anada is a standard which CSA INTERNATIONAL / . Les normes nationales du Canada sont publiCes en versions franGaise et anglaise. 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 to judge its sui
18、tability for their particular purpose. ICS 13.080; 35.180 Ref. No. ISO 9241-4:1998/Cor.1:2000(E) ISO 2000 All rights reservedINTERNATIONAL STANDARD ISO 9241-4:1998TECHNICAL CORRIGENDUM 1Published 2000-11-01INTERNATIONAL ORGANIZATION FOR STANDARDIZATION Gb7 Gb7 ORGANISATION INTERNATIONALE DE NORMALIS
19、ATIONErgonomic requirements for office work with visual displayterminals (VDTs) Part 4:Keyboard requirementsTECHNICAL CORRIGENDUM 1Exigences ergonomiques pour travail de bureau avec terminaux crans de visualisation (TEV) Partie 4: Exigences relatives aux claviersRECTIFICATIF TECHNIQUE 1Technical Cor
20、rigendum 1 to International Standard ISO 9241-4:1998 was prepared by Technical CommitteeISO/TC 159, Ergonomics, Subcommittee SC 4, Ergonomics of human-system interaction.Technical Corrigendum 1:2007 toNational Standard of CanadaCAN/CSA-ISO 9241-4-00Technical Corrigendum 1:2000 to International Stand
21、ard ISO 9241-4:1998 has been adopted withoutmodification (IDT) as T echnical Corrigendum 1:2007 to CAN/CSA-ISO 9241-4-00. This TechnicalCorrigendum was reviewed by the CSA Technical Committee on Office Ergonomics, under the jurisdiction ofthe Strategic Steering Committee on Occupational Health and S
22、afety, and has been formally approved by theTechnical Committee.June 2007 International Organization for Standardization (ISO), 2000. All rights reserved. NOT FOR RESALE. ISO 9241-4:1998/Cor.1:2000(E)2 ISO 2000 All rights reservedPage 10Replace Figure 8 with the following figure.Key1 Force at snap p
23、oint between 0,5 N and 0,8 N (preferred) 0,25 N and 1,5 N (permitted)2 Snap point3Rampaction4 Snap action5 Switch make point occurs after the snap point at force equal to or less than snap point6 Initial resistance between 25 % and 75 % of force at snap point7 Full travel 2 mm - 4 mm (preferred), 1,
24、5 mm - 6 mm (permitted)Figure 8 Relationship between key displacement and key forceTechnical Corrigendum 1:2007 to CAN/CSA-ISO 9241-4-00ISO 9241-4:1998/Cor.1:2000(E) ISO 2000 All rights reserved 3Page 177.3.8.2 Geometric design of key legendsOn page 18, replace the last sentence of the last paragrap
25、h with the following text.Estimate the uncertainty of the two averages as the standard deviations. Then calculate the total uncertainty usingthe partial derivations method (see BIPM/IEC/IFCC/ISO/IUPAC/IUPAP/OIML:1993, Guide to the Expression ofUncertainty in Measurement, for further guidance).G28G29
26、ForegroundBackgroundForegroundTotal Foreground Background2BackgroundBackgroundTotalAverageContrast=AverageAverage1Uncert StdDev StdDevAverageAverageResult = Contrast UncertG3dG2bGb1Technical Corrigendum 1:2007 to CAN/CSA-ISO 9241-4-00PRINTED IN CANADAIMPRIMEAU CANADA100%The Canadian Standards Associ
27、ation (CSA) prints its publications on Rolland Enviro100, which contains 100% recycled post-consumer fibre, is EcoLogo and Processed Chlorine Free certified, and was manufactured using biogas energy.Ergonomic requirements for office work with visual display terminals (VDTs) - Part 4: Keyboard requir
28、ements CAN/CSA-IS0 924 1-4-00 CAN/CSA-IS0 9241 -4-00 Ergonomic requirements for office work with visual display terminals (VDTs) -Part 4: Keyboard requirements CSA Preface This is the first edition of CSA Standard CAN/CSA-IS0 9241 -4, Ergonomic requirements for office work with visual display termin
29、als (VDTs) - Part 4: Keyboard requirements, which is an adoption without modification of the identically titled IS0 (International Organization for Standardization) Standard 9241 -4:1998 (first edition, 1998-08-01). This IS0 Standard was developed by the IS0 Technical Committee ISO/TC 159 SC 4. It i
30、s part of the series of IS0 9241 Standards that address ergonomic requirements for office work with visual display terminals. In conjunction with the adoption of this Standard, CSA is issuing a new edition of CSA Standard 241 2, Guideline on Office Ergonomics. Basic principles and information from t
31、he IS0 Standards have been used in the development of this CSA guideline. This Standard was reviewed for Canadian adoption by the CSA Technical Committee on Office Ergonomics under the jurisdiction of the Strategic Steering Committee on Occupational Health and Safety, and has been formally approved
32、by the Technical Committee. A list of the members of the Technical Committee is available upon request. This Standard has been approved as a National Standard of Canada by the Standards Council of Canada. December 2000 0 CSA lnternational- 2000 All rights reserved. No part of this publication may be
33、 reproduced in any form whatsoever without the prior permission of the publisher. IS0 material is reprinted with permission. Inquiries regarding this National Standard of Canada should be addressed to CSA International, 178 Rexdale Boulevard, Toronto, Ontario, Canada, M9W 7 R3. December 2000 UA/1 IN
34、TERNATIONAL STANDARD IS0 9241 -4 First edition 1998-08-01 Ergonomic requirements for office work with visual display terminals (VDTs) - Part 4: Key board requirements Exigences ergonomiques pour travail de bureau avec terminaux a ecrans de visualisation FEV) - Pattie 4: Exigences relatives aux clavi
35、ers Reference number IS0 9241 -4: 1998(E) IS0 9241-4:1998(E) Contents 1 Scope 2 Normative references . 3 Definitions 4 Guiding principles 5 Performance criterion 6 Design requirements and recommendations . 7 Measurement . 8 Conformance . Annex A Usability test (proposed alternative test) . B Bibliog
36、raphy . Page 1 1 2 7 8 8 13 19 20 27 0 IS0 1998 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher. In
37、ternational Organization for Standardization Case postale 56 CH-1211 Geneve 20 Switzerland Internet isoiso.ch ii 0 IS0 IS0 9241-4:1998( E) Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of prepari
38、ng International Standards is normally carried out through IS0 technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non- governmental, in li
39、aison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publicat
40、ion as an International Standard requires approval by at least 75 % of the member bodies casting a vote. International Standard IS0 9241 -4 was prepared by the Technical Committee lSO/TC 159, Ergonomics, Subcommittee SC 4, Ergonomics of human system interaction. IS0 9241 consists of the following pa
41、rts, under the general title Ergonomic requirements for office work with visual display terminals (VDTs): - Part 1: General introduction - Part 2: Guidance on task requirements - Part 3: Visual display requirements - Part 4: Keyboard requirements - Part 5: Workstation layout and postural requirement
42、s - Part 6: Guidance on the work environment - Part 7: Requirements for display with reflections - Part 8: Requirements for displayed colours - Part 9: Requirements for non-keyboard input devices - Part 10: Dialogue principles - Part 11: Guidance on usability - Part 12: Presentation of information -
43、 Part 13: User guidance - Part 14: Menu dialogues - Part 15: Command dialogues iii IS0 9241-4:1998(E) - Part 16: Direct-manipulation dialogues - Part 17: Form filling dialogues Annexes A and B of this part of IS0 9241 are for information only. iv 0 IS0 IS0 9241-4:1998(E) I n t rod uc t ion The keybo
44、ard is currently the principal input device used by operators to enter information into interactive off ice computer systems. Keyboard design can have a significant impact on efficiency, effectiveness and satisfaction. The requirements and recommendations are based on ergonomic principles. V INTERNA
45、TIONAL STANDARD 0 IS0 IS0 9241-4:1998(E) Ergonomic requirements for off ice work with visual display terminals (VDTs) - Part 4: Keyboard requi rernen ts 1 Scope This part of IS0 9241 applies to linear detachable keyboards designed for stationary use. It provides guidance on the design of keyboards u
46、sed for typical office tasks so that the limitations and capabilities of users are considered. It provides guidance based on ergonomic factors for keyboard layout arrangements, the physical characteristics of the individual keys and the overall design of the housing containing the keys. This part of
47、 IS0 9241 specifies methods for testing conformance by measuring the physical attributes of a keyboard. It also includes a proposed alternative test method for keyboards that do not conform to the physical design requirements and recommendations, based on a user performance test and subjective ratin
48、g scales. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this part of IS0 9241. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on
49、this part of IS0 9241 are encouraged to investigate the possibility of applying the most recent editions of the standards indicated below. Members of EC and IS0 maintain registers of currently valid International Standards. IS0 2469: 1994, Paper, board and pulps - Measurement of difluse reflectance factor. IS0 7000: 1989, Graphical symbols for use on equipment - Index and synopsis. IS0 9241-3: 1992, Ergonomic requirements for ofice work with visual display terminals (VDTs) - Part 3: Visual display requirements. IS0 9241-5:-*),
