ISO INTERNATIONAL STANDARD 23861 First edition 2022-09 Workplace air Chemical agent present as a mixture of airborne particles and vapour Requirements for evaluation of measuring procedures using samplers Air des lieuxdetravailAgent chimiquepresentsousformede melange de particules en suspension dans I'air et de vapeur Exigences d'evaluation des procedures de mesure utilisant des dispositifs deprelevement Referencenumber IS023861:2022(E) ISO @ISO 2022 IS0 23861:2022(E) COPYRIGHTPROTECTEDDOCUMENT @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 anyform or byanymeans, 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-1214Vernier,Geneva Phone:+41227490111 Email: [email protected] Website: www.iso.org Published in Switzerland ii @IS02022-All rights reserved