1、BSI Standards Publication Electric toasters for household and similar use Methods and measurements for improving accessibility PD IEC/TS 62835:2015National foreword This Published Document is the UK implementation of IEC/TS 62835:2015. The UK participation in its preparation was entrusted to Technic
2、al Committee CPL/59, Performance of household electrical appliances. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct appli
3、cation. The British Standards Institution 2015. Published by BSI Standards Limited 2015 ISBN 978 0 580 84572 7 ICS 97.040.50 Compliance with a British Standard cannot confer immunity from legal obligations. This Published Document was published under the authority of the Standards Policy and Strateg
4、y Committee on 31 July 2015. Amendments/corrigenda issued since publication Date Text affected PUBLISHED DOCUMENT PD IEC/TS 62835:2015 IEC TS 62835 Edition 1.0 2015-04 TECHNICAL SPECIFICATION Electric toasters for household and similar use Methods and measurements for improving accessibility INTERNA
5、TIONAL ELECTROTECHNICAL COMMISSION ICS 97.040.50 ISBN 978-2-8322-2658-2 Registered trademark of the International Electrotechnical Commission Warning! Make sure that you obtained this publication from an authorized distributor. PD IEC/TS 62835:2015 2 IEC TS 62835:2015 IEC 2015 CONTENTS FOREWORD . 4
6、INTRODUCTION . 6 1 Scope 7 2 Normative references 7 3 Terms and definitions 8 4 Source of accessibility recommendations 9 4.1 General . 9 4.2 Users characteristics 9 4.3 Body measurements . 10 5 Assessment of accessibility . 10 5.1 General . 10 5.2 Tasks the user has to carry out . 10 5.3 Procedure
7、for accessibility assessment . 12 5.3.1 General . 12 5.3.2 Ambient conditions 12 5.3.3 Assessment procedure 12 6 Measurement accuracy 13 6.1 General . 13 6.2 Linear dimensions . 13 6.3 Angle 13 6.4 Force 13 6.5 Torque 13 6.6 Reflection . 13 7 Test procedure 13 7.1 General . 13 7.2 General recommenda
8、tions for printing, markings and displays 13 7.2.1 General . 13 7.2.2 Contrast 14 7.2.3 Colour contrast 14 7.2.4 Reflection and gloss 14 7.2.5 Upper and lower case letters . 14 7.2.6 Font style 15 7.2.7 Font size . 15 7.2.8 Symbols 15 7.3 Information supplied with the toaster (e.g. instructions for
9、use) . 15 7.3.1 General . 15 7.3.2 Availability of alternative formats . 15 7.3.3 Clarity of instructions for use . 16 7.3.4 Index . 16 7.3.5 Construction of printed documents . 17 7.3.6 Paper reflectance 17 7.3.7 Line spacing 17 7.4 Mechanical aspects 17 7.4.1 Layout of interactive parts . 17 7.4.2
10、 Lifting and carrying 17 PD IEC/TS 62835:2015IEC TS 62835:2015 IEC 2015 3 7.4.3 Attachments 17 7.4.4 Removal of toasted items 18 7.4.5 Crumb removal 18 7.4.6 Power plug and cord 18 7.4.7 Operation of the toaster . 19 7.5 Controls 19 7.5.1 General . 19 7.5.2 Push buttons . 19 7.5.3 Knobs 20 7.5.4 Lev
11、er . 22 7.5.5 Mechanical selection wheels and slide-controls . 22 7.5.6 Touch controls . 24 7.6 Feedback 24 7.7 Markings on the toaster 24 7.7.1 General . 24 7.7.2 Location of information 25 7.7.3 Letter height of markings . 25 7.7.4 Symbols 25 7.8 Packaging . 25 7.8.1 Ease of unpacking and repackin
12、g 25 7.8.2 Information provided 25 Annex A (informative) Hand measurements . 27 Bibliography 32 Figure 1 Cylindrical knobs and a bar-grip knob 20 Figure 2 Mechanical selection wheel 23 Figure 3 Slide control . 23 Figure A.1 Hand length 27 Figure A.2 Dorsal length of middle finger . 28 Figure A.3 Bac
13、k of the hands length 28 Figure A.4 “Projective” hand width . 29 Figure A.5 Direct fist width . 29 Figure A.6 Distal middle hands (metacarpus) thickness 30 Figure A.7 “Projective” distal thumb joints width 30 Figure A.8 “Projective” distal forefinger joints width . 31 Table 1 Task assessment 11 Tabl
14、e 2 Cylinder knobs 21 Table 3 Bar-grip knobs . 21 Table 4 Mechanical selection wheels (See Figure 2) 22 Table 5 Slide control (See Figure 3) . 24 PD IEC/TS 62835:2015 4 IEC TS 62835:2015 IEC 2015 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ ELECTRIC TOASTERS FOR HOUSEHOLD AND SIMILAR USE METHODS AND
15、MEASUREMENTS FOR IMPROVING ACCESSIBILITY FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all qu
16、estions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publicati
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22、ion bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall at
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24、es) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publicat
25、ion. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. The main task of IEC technical committees is to prepare International Standards. In ex
26、ceptional circumstances, a technical committee may propose the publication of a Technical Specification when the required support cannot be obtained for the publication of an International Standard, despite repeated efforts, or the subject is still under technical development or where, for any other
27、 reason, there is the future but no immediate possibility of an agreement on an International Standard. Technical Specifications are subject to review within three years of publication to decide whether they can be transformed into International Standards. IEC TS 62835, which is a Technical Specific
28、ation, has been prepared by IEC technical committee 59: Performance of household and similar electrical appliances. PD IEC/TS 62835:2015IEC TS 62835:2015 IEC 2015 5 The text of this Technical Specification is based on the following documents: Enquiry draft Report on voting 59/618/DTS 59/631/RVC Full
29、 information on the voting for the approval of this Technical Specification can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. In this Technical Specification, the following type is used: compliance
30、statements: in italic type. The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be transformed int
31、o an International standard, reconfirmed, withdrawn, replaced by a revised edition, or amended. A bilingual version of this publication may be issued at a later date. PD IEC/TS 62835:2015 6 IEC TS 62835:2015 IEC 2015 INTRODUCTION Ever greater demands are now being placed on the accessibility of prod
32、ucts, but despite this, there has been no easily available data for assessing and evaluating products from an accessibility perspective. An effective way to conduct product development is to work on the basis of adequate testing methods for assessing various properties, as accessibility recommendati
33、ons can be formulated more clearly and be given greater emphasis during the development of appliances. Accessibility properties must be prioritised alongside functional, technical and production-related properties. For this purpose, an inventory of sources with a product-accessibility focus has been
34、 drawn up, which has given useful basic information and data for setting recommendations for the design of products. This Technical Specification on toasters is a result of this work, and provides information in the form of accessibility facts and an understanding of the interaction of user and appl
35、iance. This Technical Specification is being issued in the Technical Specification series of publications (according to the ISO/IEC Directives, Part 1, 3.1.1.1) as a “prospective standard for provisional application” in the field of accessibility of household appliances because there is an urgent ne
36、ed for guidance on how standards in this field should be used to meet an identified need. This Technical Specification provides recommendations and measurements for product characteristics of household toasters, which contribute to their accessibility and underlying ergonomic principles. These recom
37、mendations originate from scientific knowledge and the theory of ergonomics, physiology, product design and other relevant disciplines. This Technical Specification applies ISO/IEC Guide 71 and ISO/TR 22411 to toasters. Data is drawn from ISO/TR 22411 and, if not specified there, from other sources.
38、 The purpose of designing and evaluating toasters with regard to accessibility is to maximize the number of people who can readily use the products. Accessible products can be designed by incorporating product characteristics that are beneficial for the user. This Technical Specification explains th
39、e characteristics, which meet the needs and abilities of an intended user. However, the characteristics that a product needs for accessibility are dependent on the type of user and task. This Technical Specification therefore includes objective criteria regarding accessibility for product characteri
40、stics of the toaster. PD IEC/TS 62835:2015IEC TS 62835:2015 IEC 2015 7 ELECTRIC TOASTERS FOR HOUSEHOLD AND SIMILAR USE METHODS AND MEASUREMENTS FOR IMPROVING ACCESSIBILITY 1 Scope This Technical Specification contains accessibility recommendations to enable the use of toasters by older persons and p
41、ersons with disabilities. It provides guidance to achieve more accessible toasters. This Technical Specification provides test methods and data that support accessible design. This Technical Specification gives guidance to apply ISO/TR 22411 and ISO/IEC Guide 71 to the design of toasters and to IEC
42、60442. It does not deal with safety issues nor cover toasters for professional use. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For un
43、dated references, the latest edition of the referenced document (including any amendments) applies. IEC 60335-1, Household and similar electrical appliances Safety Part 1: General requirements IEC 60335-2-9, Household and similar electrical appliances Safety Part 2-9: Particular requirements for gri
44、lls, toasters and similar portable cooking appliances IEC 60417, Graphical symbols for use on equipment (available at: http:/www.graphical- symbols.info/equipment) IEC 60442:1998, Electric toasters for household and similar purposes Methods for measuring the performance IEC 60442:1998/AMD1:2003 1IEC
45、 TR 61592, Household electrical appliances Guidelines for consumer panel testing IEC 82079-1:2012, Preparation of instructions for use Structuring, content and presentation Part 1: General principles and detailed requirements ISO/IEC Guide 37, Instructions for use of products by consumers ISO/IEC Gu
46、ide 71:2014, Guide for addressing accessibility in standards ISO 2813, Paints and varnishes Determination of gloss value at 20 degrees, 60 degrees and 85 degrees ISO/TR 22411:2008, Ergonomics data and guidelines for the application of ISO/IEC Guide 71 to products and services to address the needs of
47、 older persons and persons with disabilities _ 1 There exists a consolidated edition 2.1 including IEC 60442:1998 and its Amendment 1:2003. PD IEC/TS 62835:2015 8 IEC TS 62835:2015 IEC 2015 ISO 7000, Graphical symbols for use on equipment Registered symbols (available at: http:/www.graphical-symbols
48、.info/equipment) EN 12464-1, Light and lighting Lighting of work places Part 1: Indoor work places EN 13300, Paints and varnishes Water-borne coating materials and coating systems for interior walls and ceilings. Classification 3 Terms and definitions For the purposes of this document, the following
49、 terms and definitions apply: 3.1 accessibility extent to which products, systems, services, environments and facilities can be used by people from a population with the widest range of characteristics and capabilities to achieve a specified goal in a specified context of use Note 1 to entry: Context of use includes direct use or use supported by assistive technologies. Note 2 to entry: Adapted from ISO/TR 22411:2008, definition
