ISO INTERNATIONAL STANDARD 19055 Firstedition 2015-09-01 Microscopes Minimum requirements for binocular tubes Microscopes - Exigences minimales pour tubes binoculaires Reference number IS0 19055:2015(E) ISO @IS02015 IS0 19055:2015(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address below or Iso's member body in the country of the requester. ISO copyright office Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax+4122 749 09 47 copyright@iso.org www.iso.org @ IS0 2015 - All rights reserved Copvriaht Inte IS0 19055:2015(E) Contents Page Foreword ..iv 1 Scope. ..1 2 Normativereferences ..1 3 Terms and definitions ..1 4 Requirements .2 Annex A (normative) Test methods for binocular tubes .4 iii