ISO INTERNATIONAL STANDARD 13833 First edition 2013-04-01 Stationary source emissions Determination of the ratio of biomass (biogenic) and fossil-derived carbon dioxide Radiocarbon sampling and determination Emissions de sources fixes - Deétermination du rapport du dioxyde de carbone de la biomasse (biogénique) et des dérivés fossiles - Echantillonnage et determination du radiocarbone Reference number ISO 13833:2013(E) ISO IS02013 IS0 13833:2013(E) COPYRIGHTPROTECTEDDOCUMENT @ISO2013 All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized otherwise in any form 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 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 ii @ IS0 2013 - All rights reserved IS0 13833:2013(E) Contents Page Foreword ..iv Introduction. ..V 1 Scope. ..1 2 Normative references ..1 3 Terms and definitions ..1 4 Symbols and abbreviated terms .2 4.1 Symbols. .2 4.2 Abbreviations .3 5 Principle ..4 5.1 General .4 5.2 Principles of sampling ..4 5.3 14C measurement techniques. ..5 6 Reagent, materials and equipment .5 7 Analvsis .9 8 Calculation of the results .9 9 Quality assurance and quality control procedures ..11 10 Test report .11 Annex A (normative) Procedure for 14C determination by accelerator mass spectrometry ..13 Annex B (normative) Procedure for 14C determination by liquid scintillation counter method....16 Annex C (normative) Procedures for 14C determination by beta-ionization ..21 Annex D (informative) Performance characteristics 14C methods ..24 Annex E (informative) Definitions and equations of the 14C-based method ..28 Bibliography .36 @ IS0 2013 - All rights reserved iii