IEC TR 62964 Edition 1 0 201 5 05 TECHNICAL REPORT Graphical symbols for use on equipment – Graphical symbols for multimedia equipment – Current practice IE C T R 6 2 9 6 4 2 0 1 5 0 5 (e n ) ® colour[.]
I E C TR 62 64 ® Edition 201 5-05 TE C H N I C AL RE P ORT colour i n sid e G raph i cal s ym bol s for u s e on e q u i pm en t – G raph i cal s ym bol s for m u l ti m ed i a IEC TR 62964:201 5-05(en) eq u i pm en t – C u rre n t practi ce T H I S P U B L I C AT I O N I S C O P YRI G H T P RO T E C T E D C o p yri g h t © I E C , G e n e v a , S wi tz e rl a n d 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 either IEC or IEC's member National Committee in the country of the requester If you have any questions about I EC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local I EC member National Committee for further information IEC Central Office 3, rue de Varembé CH-1 21 Geneva 20 Switzerland Tel.: +41 22 91 02 1 Fax: +41 22 91 03 00 info@iec.ch www.iec.ch Ab ou t th e I E C The I nternational Electrotechnical Commission (I EC) is the leading global organization that prepares and publishes I nternational Standards for all electrical, electronic and related technologies Ab o u t I E C p u b l i ca ti o n s The technical content of IEC publications is kept under constant review by the IEC Please make sure that you have the latest edition, a corrigenda or an amendment might have been published I E C Catal og u e - webstore i ec ch /catal og u e The stand-alone application for consulting the entire bibliographical information on IEC International Standards, Technical Specifications, Technical Reports and other documents Available for PC, Mac OS, Android Tablets and iPad I E C pu bl i cati on s s earch - www i ec ch /search pu b The advanced search enables to find IEC publications by a variety of criteria (reference number, text, technical committee,…) It also gives information on projects, replaced and withdrawn publications E l ectroped i a - www el ectroped i a org The world's leading online dictionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French, with equivalent terms in additional languages Also known as the International Electrotechnical Vocabulary (IEV) online I E C G l os sary - s td i ec ch /g l oss ary More than 60 000 electrotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002 Some entries have been collected from earlier publications of IEC TC 37, 77, 86 and CISPR I E C J u st Pu bl i s h ed - webstore i ec ch /j u stpu bl i sh ed Stay up to date on all new IEC publications Just Published details all new publications released Available online and also once a month by email I E C C u stom er S ervi ce C en tre - webstore i ec ch /csc If you wish to give us your feedback on this publication or need further assistance, please contact the Customer Service Centre: csc@iec.ch I E C TR 62 64 ® Edition 201 5-05 TE C H N I C AL RE P ORT colour i n sid e G raph i cal s ym bol s fo r u s e on e q u i pm en t – G raph i cal s ym bol s for m u l ti m ed i a eq u i pm e n t – C u rre n t practi ce INTERNATIONAL ELECTROTECHNICAL COMMISSION ICS 01 080.20; 33.1 60.60 ISBN 978-2-8322-2644-5 Warn i n g ! M ake su re th a t you obtai n ed th i s pu bl i cati on from an au th ori zed d i s tri bu tor ® Registered trademark of the International Electrotechnical Commission –2– I EC TR 62964: 201 © I EC 201 CONTENTS FOREWORD I NTRODUCTI ON Scope Norm ative references Terms and definitions Current practice General Current practice for control Current practice for indication Bibliograph y Table – Current practice for controls Table – Current practice for indication 1 I EC TR 62964:201 © I EC 201 –3– INTERNATI ONAL ELECTROTECHNI CAL COMMISSI ON G R AP H I C AL S YM B O L S F O R U S E O N E Q U I P M E N T – G R AP H I C AL S YM B O L S F O R M U L T I M E D I A E Q U I P M E N T – C U RRE N T P R AC T I C E FOREWORD ) The I nternati on al Electrotechni cal Comm ission (I EC) is a worl d wid e organization for stan dardization com prisin g all n ation al el ectrotechnical comm ittees (I EC National Comm ittees) The object of I EC is to prom ote internati onal co-operation on all questions concerni ng stand ardi zati on in the el ectrical an d electronic fields To this end and in additi on to other acti vities, I EC publish es I nternational Stan dards, Techn ical Specifications, Technical Reports, Publicl y Avail abl e Specificati ons (PAS) an d Gu ides (h ereafter referred to as “I EC Publication(s)”) Thei r preparation is entrusted to technical comm ittees; any I EC National Comm ittee interested in the subj ect dealt with m ay partici pate in this preparatory work I nternational, governm ental an d n on governm ental organ izations l iaising with th e I EC also participate i n this preparation I EC collaborates closel y with the I ntern ational Organi zation for Stand ardization (I SO) in accordance with ditions determ ined by agreem ent between th e two organi zati ons 2) The form al decisions or ag reem ents of I EC on tech nical m atters express, as n early as possible, an i nternati onal consensus of opi nion on the rel evant subjects since each technical com m ittee has representati on from all interested I EC N ational Com m ittees 3) I EC Publications have the form of recomm endations for intern ational use an d are accepted by I EC National Com m ittees in that sense While all reasonable efforts are m ade to ensure that the tech nical content of I EC Publications is accu rate, I EC cann ot be h eld responsi ble for th e way in which th ey are used or for an y m isinterpretation by an y en d u ser 4) I n order to prom ote intern ational u niform ity, I EC National Com m ittees und ertake to apply I EC Publications transparentl y to the m axim um extent possible i n their national an d regi on al publicati ons Any d ivergence between an y I EC Publication and the correspondi ng national or regi on al publicati on sh all be clearl y in dicated in the latter 5) I EC itself d oes n ot provi de an y attestation of conform ity I n depend ent certificati on bodies provi de conform ity assessm ent services and, in som e areas, access to I EC m arks of conform ity I EC is not responsi ble for any services carri ed out by ind ependent certification bodi es 6) All users shou ld ensure that th ey h ave the l atest editi on of thi s publicati on 7) No liability shall attach to I EC or its directors, em ployees, servants or ag ents inclu din g in divi dual experts an d m em bers of its technical com m ittees and I EC Nati on al Com m ittees for any person al i njury, property d am age or other dam age of any nature whatsoever, wheth er di rect or indirect, or for costs (includ i ng leg al fees) and expenses arisi ng out of the publ ication, use of, or relian ce upon, this I EC Publicati on or any other I EC Publications 8) Attention is drawn to th e N orm ative references cited in th is publ ication Use of the referenced publ ications is indispensable for the correct applicati on of this publication 9) Attention is drawn to the possibility that som e of the elem ents of this I EC Publication m ay be the su bject of patent rig hts I EC shall not be held responsibl e for identifyi ng any or all such patent ri ghts The m ain task of I EC technical comm ittees is to prepare I nternational Standards H owever, a technical committee m ay propose the publication of a technical report when it has collected data of a different kind from that which is normally published as an I nternational Standard, for exam ple "state of the art" I EC TR 62964, which is a Technical Report, has been prepared by subcomm ittee 3C: Graphical sym bols for use on equipm ent, of I EC technical committee 3: I nform ation structures and elem ents, identification and marking principles, docum entation and graphical sym bols The text of this Technical Report is based on the following docum ents: Enqui ry draft Report on votin g 3C/1 953/DTR 3C/2006/RVC Full inform ation on the voting for the approval of this Technical Report can be found in the report on voting indicated in the above table –4– I EC TR 62964: 201 © I EC 201 This publication has been drafted in accordance with the I SO/I EC Directives, Part In this Technical Report, the following type is used: – te ms define d in Cla use 3: in ita lic typ e The comm ittee has decided that the contents of this publication will remain unchanged until the stability date indicated on the I EC website under "http: //webstore iec.ch" in the data related to the specific publication At this date, the publication will be • • • • reconfirmed, withdrawn, replaced by a revised edition, or am ended A bilingual version of this publication m ay be issued at a later date I M P O R T AN T – Th e “ col ou r i n s i d e” t h a t i t c o n t a i n s c o l o u rs w h i c h o f i t s co n te n ts U s e rs s h o u l d l og o on th e a re c o n s i d e re d cove r p ag e t o b e u s e fu l o f th i s p u b l i cati on i n d i c ate s fo r t h e c o rre c t u n d e rs t a n d i n g t h e re fo re p ri n t t h i s p u b l i c a t i o n u sing a c o l o u r p ri n t e r I EC TR 62964:201 © I EC 201 –5– INTRODUCTION The first edition of I EC 6041 7, G p hica l sym b o ls fo r use o n e quip m en t, was published in 973 Since then the publication has been maintained and updated continuousl y, m ainl y by adding new graphical sym bols in order to m eet the requirements of technical comm ittees and subcomm ittees within the I EC as well as I SO/I EC JTC together with industries This Technical Report thus includes classical graphical symbols targeted to specific application areas as well as basic graphical symbols for general application In the era of information com munication technolog y (I CT), new graphical sym bols for use on such equipm ent as m ultimedia equipm ent have been in strong demand for standardization These graphical sym bols are not onl y printed, engraved, em bossed, or moulded on the equipm ent, but also used on screens and displays I n the latter case, the appearance of a graphical symbol is d ynam icall y changed to indicate a state of the equipment This Technical Report intends to highlight current tendency and practice of using graphical symbols for use on equipm ent –6– I EC TR 62964: 201 © I EC 201 G R AP H I C AL S YM B O L S F O R U S E O N E Q U I P M E N T – G R AP H I C AL S YM B O L S F O R M U L T I M E D I A E Q U I P M E N T – C U RRE N T P R AC T I C E S cop e This Technical Report provides the result of a stud y of som e of the gra ph ica l sym bols for use on equip m e nt standardized in I EC 6041 being primaril y intended to: – – – – – identify the e quip m en t or a part of the e quip m en t (e g a control or display); indicate a functional state (e g on, off, alarm ); designate connections (e g terminals, filling points for materials); provide information on packaging (e g identification of contents, instructions for handling); provide instruction for the operation of the e quip me n t (e g limitations of use); in the focus of contem porary use of gra p h ica l symb ols for use on multimedia e quip me n t, and new possible meanings to be envisaged as well as new gra ph ica l symb o ls not yet standardized in I EC 6041 N o rm a t i ve re fe re n c e s The following docum ents, in whole or in part, are normativel y referenced in this docum ent and are indispensable for its application For dated references, onl y the edition cited applies For undated references, the latest edition of the referenced docum ent (including an y amendments) applies None T e rm s a n d d e fi n i t i o n s For the purposes of this docum ent the following term s and definitions apply eq u i pm en t associated assem blies intended to achieve a defined final obj ective [SOU RCE: I EC 8041 6-1 : 2008, 3] g p h i c a l s ym b o l visuall y perceptible figure with a particular m eaning used to transmit inform ation independently of language [SOU RCE: I EC 8041 6-1 : 2008, 4] 3 g l yp h recognizable abstract graphic sym bol which is independent of an y specific design [SOU RCE: I SO/I EC 9541 -1 : 201 2, 2] I EC TR 62964:201 © I EC 201 3.4 glyph image image of a glyp h , as obtained from a –7– glyp h representation displayed on a presentation surface [SOU RCE: I SO/I EC 9541 -1 : 201 2, 5] 3.5 icon gra p h ica l sym b o l presented on a screen or display Note to entry: I cons can be static, interactive and chang e as the result of user input or d ynam ic and change as the result of equip m en t status [SOU RCE: I EC 62648: 201 2, 3.1 ] Current practice 4.1 General One of the im portant expectation and function of the gra p h ica l sym b ols in I EC 6041 is to serve as a pool of standardized grap h ica l symb o ls for use on e quip m e n t to be used, in accordance with the provisions given in I EC 8041 6-3: 2002 and I EC 8041 6-3: 2002/AMD1 :201 , 4, in I EC publications following the rules given in I SO/I EC Directives, Part 2: 201 , 6 The actual applications and use of such gra p h ica l sym bols include som e m odifications to fit specific purposes, which are allowed in accordance with the provisions given in IEC 8041 6-3: 2002 and I EC 8041 6-3:2002/AMD1 : 201 , Clause To accommodate an y difficulties to follow the rules, a set of procedures which consitute a com prom ise are given in I EC 62648, in agreem ent with I EC Guide 08 I n addition, as a result of quickly changing demand in industries such as digital cameras, multimedia, I CT and mobile equipm ent, there are new grap h ical sym b ols not yet standardized in I EC 6041 This Technical Report classifies some of these ima ges into two categories: a) b) Gra ph ica l sym bols Gra ph ica l sym bols gra p h ica l symb o ls including icons and glyph for control for indication Som e of the graphical representations shown on the right-hand columns of Table and Table are state of the art candidates for future standardization in I EC 6041 4.2 Current practice for control to identify controls of equipm ent in general are im portant and man y have been standardized in I EC 6041 for the purpose of different categories of equipm ent Gra ph ica l symb ols gra p h ica l symb ols Subclause highlights the result of stud y on current practice of grap h ical symb ols to identify the e quip me n t or a part of equipm e nt in the field of multim edia technology Table shows such grap h ical symb o ls for use on multim edia equipm e nt to trigger one of the functionalities and to change one function to another, as non-exhaustive exam ples –8– Tabl e S t a n d a rd i z e d I E C -5 2 g p h i c a l M o ve m e n t i n I EC TR 62964: 201 © I EC 201 – C u rre n t p c t i c e fo r c o n t ro l s s ym b o l s S t a t e o f t h e a rt ( e x a m p l e s ) o n e d i re c t i o n To indicate that a control, or an object by m eans of a control, can be m oved i n the i ndicated direction NOTE Onl y the li near version is given, since th e radius of th e arrow of the cu rved versi on depends on the diam eter of the control concerned The cu rved version is shown i n I SO 7000-0004 I E C -5 A N o rm a l ru n ; n o rm a l speed I E C -3 , E x a m p l e s o f a l l o w a b l e m o d i fi c a t i o n To identify th e switch or switch position by m eans of which a norm al run (e g of tape) is started in the i ndicated di rection I E C -5 B I E C -5 NOTE I n the orientation shown, the sym bol m eans "norm al run, forward" I f shown reversed, th e sym bol m eans "norm al ru n, backward" M o ve m e n t i n b o th d i re c t i o n s To indicate that a control or an object, by m eans of a control, can be m oved i n both the i ndicated directions NOTE Onl y the li near version is given, since th e radius of th e arrow of the cu rved versi on depends on the diam eter of the control concerned The cu rved version is shown i n I SO 7000-0005 I S O 0 -0 49 C o - o rd i n a t e t r a c i n g To identify the action of traci ng in a co-ordi nate plane d uri ng wel ding or therm al cutting, or to in dicate a reference to m ovem ents in fou r directions (all di rections in a plan e) I S O /I E C D I S 549 -2 M en u n a vi g a ti o n To identify th e control for navigati on i n fou r di rections; left, right, up and d own NOTE Graphical appearances are the com bination of 51 07B (top), the com bination of I EC 6041 751 07A with th e tail sh ortened (m iddle) an d the com binati on of the arrow h ead onl y of I EC 6041 7-5022 (bottom ) I EC TR 62964:201 © I EC 201 S t a n d a rd i z e d I E C -5 g p h i c a l –9– s ym b o l s E ffe c t o r a c t i o n S t a t e o f t h e a rt ( e x a m p l e s ) a w a y fro m a re fe re n c e p o i n t To indicate the direction of a certain effect or acti on away from a real or im agin ary reference poi nt or m ark, which is realized by m eans of the control m arked with this sym bol I S O 0 -0 M o ve m e n t i n wi th S ki p ; NOTE See also I EC 6041 7-51 25B a rro w d i re c t i o n s ki p o f a s to p M o v e m e n t fro m d i re c t i o n wi th a limit in s h o rt To identify th e control for or the in dicator of the fu nction to skip a part of data, e g vid eo d ata, correspon din g to a specific tim e duration To identify th e control for a m ovem ent in the arrow directi on and to skip a stop wh ere there woul d n orm ally be one I S O 0 -0 3 s ki p , a rr o w s ki p o f a s to p To identify th e control for a m ovem ent from a determ ined point i n the arrow direction and to skip a stop wh ere there woul d norm all y be one I E C -5 N e x t i m a g e s e ri e s To identify th e control or the indicator to sel ect the next seri es of im ages to be displ ayed on the screen Sl i d e sh ow To identify th e control for or the in dicator of autom atic visual ization of the d ata, e g vid eo and sl ide data, as a slide show NOTE I f the first im age of the series is to be displayed, then this m ay be em phasized by hatchin g the representati on of this im age in the g raphical sym bol I E C -5 F m e b y fra m e , g e n e l To identify th e control to operate in a fram e by fram e m ode, i e for still pictures which are vi ewed indi vid uall y NOTE The triangl e m ay be filled i n NOTE On vid eo equi pm ent, sym bol 5471 -1 m ay be used I S O 0 -1 I E C -5 C i n e d i o g p h i c e x p o s u re M o vi e ; To indicate a reference to the operati ng m ode for cine rad iog raphic exposure To identify th e control to start m oving pictu res and to indicate the li nk to them S a t e l l i t e re c e p t i o n m od e, g e n e l On telecom m unications recei vers To identify th e control which allows th e eq uipm ent to recei ve satel lite broadcastin g transm issions I S O /I E C 6 ( ) ci n em a S AT E L L I T E AN T E N N A UCS: F4E1 = position ind icator, news G l obal p o s i ti o n i n g s ys t e m ; GPS To identify th e in dicator of global positioni ng system (GPS) function – 10 – S t a n d a rd i z e d I E C -5 g p h i c a l s ym b o l s E n l a rg e m e n t o f re g i o n I EC TR 62964:201 © I EC 201 S t a t e o f t h e a rt ( e x a m p l e s ) of I S O /I E C 6 ( ) i n te re s t To identify th e control or the indicator to enlarg e the reg ion of interest of the displayed im age (zoom ) NOTE The curved li ne representin g a lig ht reflection m ay be om itted NOTE To in dicate "i ncrease enlarg em ent" or "red uce enlarg em ent, " the curved lin e inside the sym bol m ay be replaced with a plus or m inus letter sym bol L E F T-P O I N TI N G M AG N I F YI N G UCS: F50D = search G L AS S RI G H T-P O I N TI N G M AG N I F YI N G G L AS S UCS: F50E = get m ore d etails I S O /I E C 1 -5 Zo om To enl arge or red uce the m agnification of a selected area I S O /I E C 6 ( ) ☆ UCS: 2606 → 2729 ✩ stress outlined W H I TE S T AR white star M y fa v o u ri t e s To identify th e function for personal favou rite bookm arks C u rre n t p c t i c e fo r i n d i c a t i o n Gra ph ica l symb ols to indicate a functional state of equipm e nt or a part of equipm e n t in general are also im portant and man y gra ph ica l symb ols have been standardized in I EC 6041 for the purpose of different categories of e quip m e nt Subclause highlights the result of stud y on current practice of grap h ical symb ols to indicate functional states of equip m e nt in the field of multimedia technolog y Table shows such gra p h ica l sym b o ls for use on m ultimedia equipm ent to show the states as nonexhaustive examples I EC TR 62964:201 © I EC 201 – 11 – T a b l e – C u rre n t p c t i c e fo r i n d i c a t i o n S t a n d a rd i z e d I E C -5 g p h i c a l s ym b o l s B a tte ry ch e c k S t a t e o f t h e a rt ( e x a m p l e s ) I S O /I E C 47 5 To identify a control to check the condition of a prim ary or secondary battery or to identify the battery cond ition i ndicator B a t te ry s ta tu s i n d i c a to r On person al m obile comm unication devices To show th e am ount of th e charg e of an intern al battery There are four states: full y charg ed, charged, weak or em pty NOTE Accordi ng to th e condition of th e battery, the size of the darkened area m ay vary NOTE I n com bination with an indicator such as an LED, this sym bol m ay be used to ind icate the battery is bei ng charg ed I E C -5 R e c h a rg e a b l e b a t t e r y To identify equi pm ent which shall on ly be used with recharg eable (secon dary) cells or batteri es, or to i dentify recharg eable cells or batteri es When shown on a battery hold er, the sym bol also i ndicates the position ing of the cells I E C -6 V i b t i o n I S O /I E C 6 ( ) V I B R AT I O N UCS: F4F3 M ODE To identify th e control or the indicator for vi bration I S O /I E C 47 5 V i b t i o n On person al m obile comm unication devices To show th at the settin g of vibrati on is on The vibration will acti vate to notify the user that an e-m ail or telephone call has been recei ved – 12 – S t a n d a rd i z e d I E C -5 g p h i c a l Ae ri a l ; s ym b o l s a n te n n a I EC TR 62964:201 © I EC 201 S t a t e o f t h e a rt ( e x a m p l e s ) I S O /I E C 6 ( ) On radio recei vi ng and transm itting eq uipm ent AN T E N N A W I T H B AR S UCS: F4F6 =cel lul ar recepti on To identify th e aeri al (antenna) term inals To indicate the strength of wireless signal This sym bol shoul d be used unless it is essential to specify the type of aeri al (antenn a) I S O /I E C 47 5 W i re l e s s c a rri e r c o n n e c t i o n On person al m obile comm unication devices To show the strength of the wireless signal wh en it connects to the carri er connection There are five states: very strong, strong, weak, very weak or not detected I E C -5 N o n -i o n i z i n g e l e c t ro m a g n e t i c I S O /I E C 5 W i re l e s s n e t w o rk d i a t i o n c o n n e c ti o n To indicate general ly el evated, potentiall y hazardous, levels of non -ioni zin g radiati on, or to indicate eq uipm ent or system s e g in the m edical electrical area that inclu de RF transm itters or that intention all y appl y RF electrom ag netic en ergy for diag nosis or treatm ent On person al m obile comm unication devices NOTE I n case of application i n a warni ng sig n the rules accordi ng to I SO 3864 sh all be adh ered to To show strength of the wireless signal wh en it connects to the n etwork There are fi ve states: very strong, strong, weak, very weak or not detected NOTE The icon can chang e dyn am ically to represent the current sign al strengths I EC TR 62964:201 © I EC 201 S t a n d a rd i z e d I E C -5 g p h i c a l H an d h el d s ym b o l s m i c ro p h o n e – 13 – S t a t e o f t h e a rt ( e x a m p l e s ) I S O /I E C 6 ( ) To identify th e control and term inal for a hand hel d m icrophon e NOTE See also I EC 6041 7-5082 M I C RO P H O N E UCS: F3A4 = karaoke I S O /I E C 47 5 M i c ro p h o n e On person al m obile comm unication devices To show the m icroph one's state – 14 – I EC TR 62964:201 © I EC 201 Bibliography I EC 6041 7, Gra ph ica l symb ols sym bols info/equipm ent) I EC 62648, Gra ph ica l symb o ls for use on e quipm e nt (available at http: //www graphical- for use on e quipm e nt – G uide lines fo r th e inclusion of gra p h ica l sym b o ls in IEC p ublicatio ns I EC 8041 6-1 : 2008, Basic p rinciples for gra p hica l sym bo ls for use on equipm e n t – Pa rt : Cre a tion of gra p hica l symb ols for re gistration I EC 8041 6-3: 2002, Basic princip les for gra ph ica l symb o ls for use on e quip m en t – Pa rt 3: Guide lin es for the a p p lication of gra ph ica l I EC 8041 6-3: 2002/AMD1 : 201 I EC Guide 08: 2006, sym bols Guide lines for e n surin g the coh ere n cy of IEC pub lica tion s – A pp lication of h orizo n ta l sta ndards I SO/I EC 9541 -1 : 201 2, Informa tio n techn o logy – Fo n t in form ation interch a n ge – Pa rt : A rch itecture ISO/I EC 0646: 201 4, In forma tion tech n ology – Un iversa l Code d Ch a racte r Se t (UCS) ISO/I EC 1 581 -5: 2004, Informa tion techn o logy – User syste m in te rfaces a n d sym bo ls – Icon symb o ls a n d fun ctio ns – Part 5: To ol icons ISO/I EC 7549-2: —, Info rm ation techn ology – User interface guide lin es on m en u n aviga tion – Part 2: Na vigation with 4-directio n devices I SO/I EC 24755: 2007, Informa tion tech nology – Scree n ico ns an d sym bols fo r p erson a l m obile com m unica tion devices I SO 7000, Gra ph ica l symb ols sym bols info/equipment) for use on e quipm e nt _ ————————— To be publ ished (available at http: //www graphical- INTERNATIONAL ELECTROTECHNICAL COMMISSI ON 3, rue de Varembé PO Box 31 CH-1 21 Geneva 20 Switzerland Tel: + 41 22 91 02 1 Fax: + 41 22 91 03 00 info@iec.ch www.iec.ch