ISO/TR TECHNICAL REPORT 20580 First edition 2022-07 Preparation of metallographic specimens Confection des éprouvettes metallographiques Reference number IS0/TR20580:2022(E) so Copyright International Organization for Standardization ISO2022 IS0/TR 20580:2022(E) COPYRIGHT PROTECTED DOCUMENT @IS02022 All rights reserved. Unless otherwise specified, or required in the context of its implementation, 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 CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone: +41 22 749 01 11 Email: copyright@iso.org Website: www.iso.org Published in Switzerland Copyigh ilhlratinal Oorganizationfor Standardization @ IS0 2022 - All rights reserved