ISO/TR TECHNICAL REPORT 17737 Second edition 2012-09-15 Workplace atmospheres Guidelines for selecting analytical methods for sampling and analysing isocyanates in air Atmospheres des lieux de travail - Lignes directrices pour la selection des méthodes analytiques d'échantillonnage et d'analyse des isocyanatesdansI'air Reference number ISO/TR 17737:2012(E) ISO @ IS0 2012 IS0/TR 17737:2012(E) COPYRIGHT PROTECTED DOCUMENT ISO 2012 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either Iso at the address below or ISo's member body in the country of the requester. ISO copyright office Case postale 56 · CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ IS0 2012 - All rights reserved IS0/TR 17737:2012(E) Contents Page Foreword ..iv 1 Scope ..1 2 Isocyanates ..1 3 Where are isocyanates found in industry? ..1 4 Airborne isocyanates ..3 5 Alternatives for sampling ..3 5.1 General. 3 5.2 Impregnated filters. .3 5.3 Impinger (and filter) 4 5.4 Sorbent tubes .4 5.5 Denuder filter ..4 5.6 Diffusive sampling. ..4 6 Direct reading instruments .4 7 Short description of five proposed and/or adopted methods for airborne isocyanates 5 7.1 DBA method. 5 7.2 Double-filter method .5 7.3 MAPmethod .6 7.4 MP method .6 7.5 PPmethod .6 8 Analysis. 9 Interferences 10 Other sampling and analytical considerations 11 Other considerations .8 Bibliography .10 sn1arillrightsreserved ii