ISO INTERNATIONAL STANDARD 6474-1 Second edition 2019-03 Implants for surgery Ceramic materials - Part 1: Ceramic materials based on high purity alumina Implantschirurgicaux-Matériauxceramiques- Partie 1: Materiaux ceramiques a base d'alumine de haute purete Reference number ISO 6474-1:2019(E) @IS0 2019 IS06474-1:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2019 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 orIso's memberbody in the countryof therequester. ISO copyright office CP 401 : Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+41227490111 Fax:+4122749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019- All rights reserved IS0 6474-1:2019(E) Contents Page Foreword ..iv Introduction.. 1 Scope.. 2 Normative references 3 Terms and definitions ..2 4 Classification 3 4.1 Material types .3 4.2 Test categories. .3 4.2.1 General 3 4.2.2 Category 1: Required tests representative forthe periodical production control.3 4.2.3 Category 2: Required tests representative for the general material specification.3 4.3 Material properties 3 5 Preparation of specimens ..5 6 Test methods. .5 6.1 Bulkdensity .5 6.2 Chemical composition .5 6.3 Microstructure 5 6.4 Strength properties. .6 6.4.1 General 6 6.4.2 Biaxialflexural strength .6 6.4.3 4-point flexural strength .7 6.4.4 Weibull modulus 7 6.5 Young's modulus.. .7 6.6 Fracture toughness 1 6.6.1 General 6.6.2 SEVNB. 7 6.6.3 SEPB .8 6.6.4 SCF. 8 6.7 Hardness. .8 6.8 Wear .8 6.9 Cyclicfatigue .8 Bibliography 9 IS0 2019 - All rights reserved iii