ISO INTERNATIONAL STANDARD 4943 Second edition 2022-08 Steel and cast iron Determination of copper content Flame atomic absorption spectrometric method Aciers et fontes-Détermination de la teneur en cuivre-Méthode par spectrométrie d'absorption atomique dans la flamme Reference number IS0 4943:2022(E) ISO @ISO2022 IS0 4943:2022(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'smemberbodyinthe country oftherequester. ISO copyright office CP 401 · Ch. de Blandonnet 8 CH-1214 Vernier, Geneva Phone:+4122 749 0111 Email: copyright@iso.org Website: www.iso.org Published in Switzerland ii @ IS0 2022 - All rights reserved