ISO INTERNATIONAL STANDARD 1833-22 Second edition 2020-12 Textiles Quantitative chemical analysis - Part 22: Mixtures of viscose or certain types of cupro or modal or lyocell with flax fibres (method using formic acid and zinc chloride) Textiles - Analyse chimique quantitative Partie 22: Mélanges de viscose ou de certains types de cupro, modal ou lyocell avec des fibres de lin (méthode a I'acide formique et au chlorure de zinc) Reference number IS0 1833-22:2020(E) OS1 @ ISO 2020 IS0 1833-22:2020(E) COPYRIGHTPROTECTEDDOCUMENT IS02020 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 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: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2020 - All rights reserved