ISO INTERNATIONAL STANDARD 17211 First edition 2015-08-15 Stationary source emissions Sampling and determination of selenium compounds in flue gas Emission des sources fixes Echantillonnage et determination des composés de séleénium dans les effluents gazeux Reference number ISO 17211:2015(E) ISO International Organization for Standardization e=Zhejiang Institute of Standardization 5956617 @IS02015 vided by IHS under I mitted without license from IHS IS0 17211:2015(E) COPYRIGHTPROTECTEDDOCUMENT IS0 2015, Published in Switzerland All rights reserved. Unless otherwise specified, 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 Ch. de Blandonnet 8 . CP 401 CH-1214 Vernier, Geneva, Switzerland Tel. +41 22 749 01 11 Fax +41 22 749 09 47 [email protected] www.iso.org Internatinai br DrganizationforStandardization HS und Not for Resale, 2015/11/11 08:40:47 networking permited without license from IHS IS0 17211:2015(E) Contents Page Foreword ..V Introduction. ...vi 1 Scope. 2 Normative references 3 Terms and definitions ..2 4 Symbols and abbreviated terms. ..2 4.1 Symbols 4.2 Abbreviated terms ..4 5 Principle ..4 6 Reagents. ..5 7 Apparatus. 8 Sampling. .9 8.1 General ..9 8.2 Sampling position and sampling point. .9 8.3 Minimum sampling duration and minimum sample volume 9 8.4 Other measurements to be made prior to sampling .9 8.4.1 Volumetric gas flow through duct at the sampling plane .9 8.4.2 Moisture content of gas. ..9 8.4.3 Oxygen content of gas. .10 8.5 Assembly of sampling apparatus 10 8.6 Sampling.. .10 8.7 Checking for leaks .10 8.8 Quality assurance.. ..10 8.9 Sample recovery .11 8.9.1 Sample recovery for gaseous selenium ..11 8.9.2 Sample recovery for particulate selenium 11 8.10 Field blank .11 9 Sample preparation .12 9.1 General .12 9.2 Sample preparation for analysis with hydride generation .12 9.2.1 Sample preparation for gaseous selenium analysis .12 9.2.2 Sample preparation for particulate selenium analysis 12 9.3 Sample preparation for analysis without hydride generation .12 9.3.1 Sample preparation for gaseous selenium analysis .12 9.3.2 Sample preparation for particulate selenium analysis .. 12 10 Analytical procedure. ..13 11 Expression of results ..13 11.1 Calculation of the volume of dry flue gas sampled at sampling conditions, Vm ..13 11.2 Calculation of the volume of dry flue gas sample normalized to standard temperatureandpressure,Va ..14 11.3 Mass concentration of selenium expressed as elemental selenium in the flue gas on a dry basis at STP, pSe,dry .14 11.4 Mass concentration of selenium expressed as elemental selenium in the flue gas on a dry basis at STP and reference oxygen volume fraction, pse,dry,o ..16 11.5 Rate of mass discharge of selenium expressed as elemental selenium, qm,Se 11.6 Mass concentration of selenium expressed as elemental selenium in the flue gas on a wet basis at STP, pSe,wet ..17 11.7 Mass concentration of selenium expressed as elemental selenium in the flue gas on a wet basis at STP and reference oxygen concentration, pse,wet,o . .17 ii censee=Zhejang Institute of Standardization 5956617 ed without license from IHS Not for Resale, 2015/11/11 08:40:47 No reproduction or networking pe