1、BRITISH STANDARD BS EN ISO 9241-5:1999 Ergonomic requirements for office work with visual display terminals (VDTs) Part5: Workstation layout and postural requirements The European Standard EN ISO9241-5:1999 has the status of a British Standard ICS 13.180; 35.180BSENISO9241-5:1999 This British Standa
2、rd, having been prepared under the directionof the Health and Environment Sector Committee, was published under the authorityof the Standards Committee and comes into effect on 15July1999 BSI 04-2000 ISBN 0 580 29975 9 National foreword This British Standard is the English language version of EN ISO
3、9241-5:1999. It is identical with ISO9241-5:1998. It supersedes BS7179-5:1990 which is withdrawn. Attention is drawn to National annex NA which provides numerical data for use with this part of BS EN ISO9241. The UK participation in its preparation was entrusted by Technical Committee PH/9, Applied
4、ergonomics, to Subcommittee PH/9/6, User system interfaces, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor rel
5、ated international and European developments and promulgate them in the UK. A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC standards normally include an annex which lists norma
6、tive references to international publications with their corresponding European publications. The British Standards which implement these international or European publications may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or b
7、y using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer imm
8、unity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN ISO title page, page 2, the ISO title page, pages ii to iv, pages1 to24, an inside back cover and a back cover. The BSI copyright notice displayed in this document indic
9、ates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsBSENISO9241-5:1999 BSI 04-2000 i Contents Page National foreword Inside front cover Foreword 2 Foreword iii Text of ISO9241-5 1 National annex NA (informative) Measurements 23 Figure NA.1 Legroom height
10、 and depth under desks 24ii blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO9241-5 March1999 ICS 13.180; 35.180 English version Ergonomic requirements for office work with visual display terminals(VDTs) Part5: Workstation layout and postural requirements (ISO9241-5:1998) Exigences ergon
11、omiques pour travail de bureau avec terminaux crans de visualisation (TEV) Partie5: Amnagement du poste de travail et exigences relatives aux postures (ISO9241-5:1998) Ergonomische Anforderungen fr Brottigkeiten mit Bildschirmgerten Teil5: Anforderungen an Arbeitsplatzgestaltung und Krperhaltung (IS
12、O9241-5:1998) This European Standard was approved by CEN on26 September1998. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibli
13、ographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exists in three official versions(English, French, German). A version in any other language made by translation under the responsibility of
14、a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norw
15、ay, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels 1999 CEN All rights of exploitation in any form and by any means reserved wor
16、ldwide for CEN national Members. Ref.No.ENISO9241-5:1999EENISO9241-5:1999 BSI 04-2000 2 Foreword The text of the International Standard from Technical Committee ISO/TC159 “Ergonomics” of the International Organization for Standardization (ISO) has been taken over as an European Standard by CEN/CS. T
17、his European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by September1999, and conflicting national standards shall be withdrawn at the latest by September1999. According to the CEN/CENELEC Internal Regulation
18、s, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, CzechRepublic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the UnitedK
19、ingdom. Endorsement notice The text of the International Standard ISO9241-5:1998 has been approved by CEN as a European Standard without any modification. NOTENormative references to International Standards are listed in Annex ZA (normative).EN ISO9241-5:1999 ii BSI 04-2000 Contents Page Foreword ii
20、i Introduction 1 1 Scope 1 2 Normative references 1 3 Definitions 1 4 Guiding principles 2 4.1 General considerations 2 4.2 Versatility and flexibility 3 4.3 Fit 3 4.4 Postural change 3 4.5 User information 3 4.6 Maintainability-adaptability 3 5 Design requirements and recommendations 4 5.1 General
21、4 5.2 Postures 4 5.3 Ease of adjustment 4 5.4 Support surfaces 7 5.5 Work chair 9 5.6 Additional support elements 10 5.7 Layout of workstations within the work space 12 6 Conformance 13 7 Measurement 13 7.1 Support surfaces 13 7.2 Safety and stability aspects of workstations 13 7.3 Seat height 13 7.
22、4 Castors 13 7.5 Layout of workstations within the workspace 13 Annex A (informative) Anthropometric data needed for workstation design and selection 14 Bibliography 20 Annex ZA (normative) Normative references to international publications with their relevant European publications 21 Figure 1 Desig
23、n reference posture for sitting position 5 Figure 2 Design reference posture for standing position 6 Figure 3 Sit/stand posture and one way a workstation may support the postural change 6 Figure 4 Recommendations for adjustability and for angles of view 8 Figure 5 Support for postural changes by mov
24、ement of back rest and seat-pan 11 Figure A.1 Important anthropometric dimensions for determining design of sitting and standing VDT workplaces 15 Figure A.2 Dimensioning of a workstation using anthropometric data of the intended user population(sitting position) 16 Figure A.3 Dimensioning of a work
25、station using anthropometric data of the intended user population(standing position) 20 Table 1 Design properties and relevant reference parameters 9 Table A.1 Clothing and related allowances 14 Descriptors: Ergonomics, office machines, computer peripheral equipment, text processing, data terminal e
26、quipment, display devices, workplaces, specifications, layout, working conditions.EN ISO9241-5:1999 BSI 04-2000 iii Foreword ISO(the International Organization for Standardization) is a worldwide federation of national standards bodies(ISO member bodies). The work of preparing International Standard
27、s is normally carried out through ISO 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 liaison with ISO, also take
28、part in the work. ISO 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. Publication as an International Sta
29、ndard requires approval by at least75% of the member bodies casting a vote. International Standard ISO9241-5 was prepared by Technical Committee ISO/TC159, Ergonomics, Sub-committee SC4, Ergonomics of human-system interaction, Working Group WG3, Control, workplace and environmental requirements. ISO
30、9241 consists of the following parts, under the general title Ergonomic requirements for office work with visual display terminals(VDTs); Part1: General introduction; Part2: Guidance on task requirements; Part3: Visual display requirements; Part4: Keyboard requirements; Part5: Workstation layout and
31、 postural requirements; Part6: Guidance on the work environment; Part7: Requirements for display with reflections; Part8: Requirements for displayed colours; Part9: Requirements for non-keyboard input devices; Part10: Dialogue principles; Part11: Guidance on usability; Part12: Presentation of inform
32、ation; Part13: User guidance; Part14: Menu dialogues; Part15: Command dialogues; Part16: Direct-manipulation dialogues; Part17: Form filling dialogues. Annex A of this part of ISO9241 is for information only.iv blankEN ISO9241-5:1999 BSI 04-2000 1 Introduction The purpose of this part of ISO9241 is
33、to promote and enhance performance and comfort while minimizing risks to users safety and health. Users of visual display terminals(VDTs) in office work typically adopt a range of postures(seated with leaning, upright or reclining torso, standing or a combination of both). Workplaces which accommoda
34、te such usage can encourage movement, promote comfort and reduce physical, mental and visual problems. This part of ISO9241 is intended for use by product and workstation designers and implementers. While drafting the text, the concept concerning the Frankfurt Plane was discussed but not included. T
35、he concept will be considered in a revision of this part of ISO9241 in due course. 1 Scope This part of ISO9241 specifies ergonomic guiding principles which apply to the user requirements, design, and procurement of workstation equipment for office tasks using VDTs. In particular, the general princi
36、ples and requirements specified in this part of ISO9241 apply to the standards specifying technical design of furniture and equipment constituting the workplace. 2 Normative references The following standards contain provisions which, through reference in this text, constitute provisions of this par
37、t of ISO9241. At the time of publication, the editions indicated were valid. All standards are subject to revision, and parties to agreements based on this part of ISO9241 are encouraged to investigate the possibility applying the most recent editions of the standards indicated below. Members of IEC
38、 and ISO maintain registers of currently valid International Standards. ISO6385:1981, Ergonomic principles in the design of work systems. ISO9241-2:1992, Ergonomic requirements for office work with visual display terminals(VDTs) Part2: Guidance on task requirements. ISO9241-3:1992, Ergonomic require
39、ments for office work with visual display terminals(VDTs) Part3: Visual display requirements. ISO9241-6:, Ergonomic requirements for office work with visual display terminals(VDTs) Part6: Guidance on the work environment 1) . 3 Definitions For the purposes of this part of ISO9241, the following defi
40、nitions apply. 3.1 angle of view angle between the line-of-sight and the line orthogonal to the surface of the display at the point where the line-of-sight intersects the image surface of the display ISO9241-3:1992 3.2 anthropometry study and measurement of the physical dimensions of the human body
41、3.3 armrest support for the lower arms 3.4 back rest part of a work chair which provides support for the back 3.5 castor wheeled component on the bottom of furniture to facilitate appropriate movement on the floor surface 3.6 design reference posture posture specified for the purpose of workstation
42、design to define relative positions and dimensions 3.7 deviation alteration from the neutral position 3.8 dynamic posture body position which changes, with relative movements of the limbs or other parts of the human body in relation to one another or with respect to a fixed object(such as a workstat
43、ion) 3.9 extension movement that increases the angle between two adjacent bones; hand extension is the movement of the hand in the dorsal direction NOTEDorsal pertains to the back of the hand, palmar to the palm. 1) To be published.EN ISO9241-5:1999 2 BSI 04-2000 3.10 flexion movement that decreases
44、 the angle between two adjacent bones; hand flexion is the movement of the hand in the palmar direction NOTEPalmar pertains to the palm of the hand. 3.11 gloss the mode of appearance by which reflected highlights of objects are perceived as superimposed on the surface due to the directionally select
45、ive properties of that surface CIE Publ. 17.4:1987; IEC845-04-73 3.12 gloss unit measure for quantifying the gloss of a surface 3.13 kyphosis convex curvature of the thoracic spine 3.14 intended user population group of human beings for which a product or a workstation is designed 3.15 line-of-sight
46、 angle the angle between a horizontal line and the visual axis of the eye(the line connecting the point of fixation and the centre of the pupil) 3.16 lordosis concave curvature of the spine 3.17 lumbar region of the back between the thorax and the pelvis 3.18 popliteal of or pertaining to the back o
47、f the knee 3.19 posture overall position of the body, or body parts in relation to each other, with respect to the workplace and its components 3.20 reference plane surface designed to support the feet NOTEIf not otherwise indicated, the reference plane is the ground. Any other level higher or lower
48、 than the ground level may be used as a reference plane for the calculation of the height of support surfaces. 3.21 static posture adoption of a body position which is fixed over time and where there is muscle contraction without motion 3.22 task analysis analytical process employed to determine the
49、 specific behaviours required of people when operating equipment or doing work NOTEThe task analysis is not a risk assessment of the workplace according to legal requirements. 3.23 workplace arrangement of workstations allocated to one person to complete a work task 3.24 work space volume of space allocated to one or more persons in the work system to complete a work task 3.25 worksurface surface on which equipment and task materials are used 3.26 workstation assembly comprising disp
