ISO INTERNATIONAL STANDARD 11567 Secondedition 2018-08 Carbon fibre Determination of filament diameter and cross- sectional area Fibres de carbone - Détermination du diametre et de I'aire de la section transversale des filaments Reference number IS0 11567:2018(E) International Organization for Standardization isee=Shenzhen Institute of Standards and Technology 9972181 @IS0 2018 IS0 11567:2018(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 2018 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 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland Internatinir prganization for Standardization Hicensee-sShenzhen Instute f tandards andeS- All rights reserved rious National Standards Bodies Not for Resale, 2018/11/26 07:54:3 No reproduction or networking permitted without license from IHS IS0 11567:2018(E) Contents Page Foreword ..iv 1 Scope .1 2 Normative references 3 Terms and definitions 4 Principle 5 Test specimens. .2 5.1 General. .2 5.2 Method A .2 5.3 Methods B and D. .2 5.4 Method C, 5.5 MethodE 2 6 Method A: Determination of the diameter by calculation .2 7 Method B: Determination of filament diameter by optical microscopy .3 7.1 Principle 3 7.2 Apparatus :3 7.3 Calibration of the microscope. .4 7.4 Preparation of the test specimen .:4 7.5 .5 Procedure 7.6 Expression of results .5 8 Method C: Determination of the diameter and cross-sectional area of transversely cut filaments by microscopy .5 8.1 Principle. .5 8.2 Apparatus .5 8.3 Preparation of test specimen. .6 8.4 Procedure. ..6 8.4.1 General 8.4.2 Optical microscopic examination .6 8.4.3 Scanning electron microscopy 8.5 Measurement of the diameter. 7 8.5.1 Filaments of circular cross-section ..7 8.5.2 Filaments of non-circular cross-section 7 9 Method D: Determination of the diameter by laser diffractometry 7 9.1 Principle. ..7 9.2 Apparatus. 7 9.3 Preparation of test specimen. .8 9.4 Procedure. ..8 9.5 Expression of results. ..8 10 Method E: Determination of filament diameter by scanning electron microscopy ..8 10.1 Principle.. 10.2 Apparatus ..8 10.3 Procedure 11 Precision 12 Test report 9 Annex A (informative) Suggested method for the preparation of test specimens for method C ...1o Intenational organiaion @s1Sar2.1.8 - All rights reserved ii