ISO INTERNATIONAL STANDARD 16000-37 First edition 2019-02 Indoor air - Part 37: Measurement of PM2.5 mass concentration Airintérieur- Partie 37: Mesure de la concentration massique en PM2,5 Reference number IS0 16000-37:2019(E) ISO @ IS0 2019 IS0 16000-37:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ ISO 2019 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: +4122 749 0111 Fax: +41 22 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland ii @ IS0 2019 - All rights reserved IS0 16000-37:2019(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. .1 2 Normative references 3 Terms and definitions ..1 4 Abbreviated terms ..3 5 Measurement strategyfor determing PM2,5 indoors .3 5.1 Location and number of sampling points .3 5.2 Measurement strategy for source attribution ..4 5.3 Indoor air condition. .4 6 Principle of measurement .4 6.1 General considerations ..4 6.2 Description of the standard measuring principle 4 7 Equipment and facilities. 5 7.1 Sampling system components .5 7.2 Weighing facilities and procedure .5 8 Supplementary high time resolution method .5 8.1 .5 General 8.2 Selection ofthe supplementary instrument 6 8.3 Supplementary procedure .6 9 Evaluation and reporting the results .6 10 Quality assurance and uncertainty evaluation 1 10.1 Reference method 7 10.1.1 General 7 10.1.2 Flow control system. 7 10.1.3 Weighing system .1 10.1.4 Checking the equipment's parameters 7 10.2 Supplementary methods .8 Annex A (informative) Examples of particle concentrations encountered during room user activities .9 Bibliography .11 @ IS0 2019 - All rights reserved iii