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 ISO at the address below or ISO's member body in the country of the requester.

ISO copyright office
Case postale 56 • CH-1211 Geneva 20
Tel.  + 41 22 749 01 11
Fax  + 41 22 749 09 47
E-mail  copyright@iso.org
Web  www.iso.org

Published in Switzerland