ISO INTERNATIONAL STANDARD 13271 First edition 2012-06-15 Stationary source emissions Determination of PM10/PM2,5 mass concentration in flue gas Measurement at higher concentrations by use of virtual impactors Emissions de sources fixes - Détermination de la concentration en masse de PM1o/PM2,5 dans les effluents gazeuxMesurage a des hautes concentrations a I'aide des impacteurs virtuels Reference number ISO 13271:2012(E) LSO @ ISO 2012 y IHS under ed without license from IHS st andar d999 ISO 13271:2012(E) COPYRIGHTPROTECTEDDOCUMENT 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 + 4122 749 09 47 E-mail [email protected] Web www.iso.org Published in Switzerland @ ISO 2012 - All rights reserved by IHS underI No reprod etworking permitted without license from IHS Notfor Resale, 03/31/2016 01:07:12 MD st andar d999 ISO 13271:2012(E) Contents Page Foreword .iv Introduction 1 Scope. 2 Normative references 3 Terms and definitions. 4 Symbols and abbreviated terms 4.1 Symbols.... 4.2 Abbreviated terms. 5 Principle. 5.1 General... 5.2 Theory of virtual impactor.... 6 Specification of the two-stage virtual impactor ... 8 6.1 General. 6.2 Separation curves 8 6.3 Verificationoftheseparationcurves 9 6.4 Operatingconditions 9 7 Sampling train 12 7.1 Measuring setup. 12 7.2 Equipment and working materials. 13 8 Preparation, measurement procedure and post-treatment .15 8.1 General..... 8.2 Pre-treatment.. .15 8.3 Measurement procedure 16 8.4 Weighing procedure . 17 8.5 Post-sampling treatment of weighed parts 18 9 Calculation of the results 18 10 Performancecharacteristics .19 10.1 Virtual impactor load. .19 10.2 Detection limit . 19 10.3 Measurement uncertainty .19 10.4 Particle losses.... .19 11 Test report. 20 Annex A (informative) Physical property estimation for the calculation of sample volume flow rate ...21 Annex B (informative) Errors by deviations from isokinetic sampling.. .25 Annex C (informative) Example of a two-stage virtual impactor . .27 Annex D (informative) Influence of variations in the flue gas temperature and flue gas composition on the Reynolds number... 31 Annex E (informative) Entry nozzle... .34 Annex F (informative) Equipment list.. ..35 Annex G (normative) Determination of a representative sampling point.. ...37 Annex H (informative) Generation of standard aerosol for virtual impactor calibration.. ..39 Bibliography .40 Copyrihtnteatinal haAllrights reserved ili tlicense from IHS standard999