ISO INTERNATIONAL STANDARD 19869 First edition 2019-09 Clean cookstoves and clean cooking solutions Field testing methods for cookstoves Fourneaux et foyers de cuisson propres - Méthodes d'essai sur site desfourneaux Reference number IS0 19869:2019(E) @ IS0 2019 IS0 19869:2019(E) COPYRIGHTPROTECTEDDOCUMENT @ IS0 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: +41 22 749 01 11 Fax: +4122 749 09 47 Email: [email protected] Website: www.iso.org Published in Switzerland i @ IS0 2019 - All rights reserved IS0 19869:2019(E) Contents Page Foreword .vi Introduction .vii 1 Scope. .1 2 Normative references .1 3 Terms and definitions .2 3.1 Cooking system. 2 3.2 Adoption. 2 3.3 Fuel consumption 3 3.4 Emissions 4 3.5 Safety and durability 6 4 Symbols, abbreviated terms, and units .6 5 Field study development 10 5.1 General 10 5.2 Selection of testing strategy 11 5.2.1 General. 11 5.2.2 Preliminary assessment 13 5.2.3 Performance assessment 14 5.2.4 Outcomes assessment. 14 5.3 Sample selection guidance. 17 5.3.1 General. 17 5.3.2 Efficacy versus effectiveness 17 5.3.3 Uncontrolled cooking test (UCT) 18 5.3.4 Representative site selection. 18 5.4 Selection of representative sampling times 18 5.4.1 Seasonal. 19 5.4.2 Events. 19 5.4.3 Harvest 19 5.4.4 Weather constraints 19 5.5 Sample size 19 5.6 Field technician capacities 20 5.7 Measurement statistics. 20 5.7.1 General 20 5.7.2 Reporting guidelines 20 5.7.3 Mitigating bias and managing uncertainty .20 6 Usage and usability 20 6.1 General. 20 6.2 Sample selection and timing 21 6.3 Cookstove usage.. 21 6.3.1 Usage reporting metrics. 21 6.3.2 Usage claims 22 6.3.3 Measurement methods. 22 6.4 Cookstove usability 26 7 Fuel measurement. 27 7.1 General 27 7.2 Output metrics 27 7.2.1 Specific energy consumption 27 7.2.2 Kitchen energy consumption. .28 7.2.3 Comparison between specific energy consumption and kitchen energy consumption. .28 7.2.4 Energy consumed. 28 7.2.5 Effective fuel heating value 28 7.2.6 Effective fuel carbon fraction 28 @ IS0 2019 - All rights reserved iii IS0 19869:2019(E) 7.3 Equipment 28 7.4 Moisture measurement 29 7.4.1 Hand-held moisture meter 29 7.4.2 Oven dry method for wood and other non-wood solid fuels. 31 7.5 Fuel heating value measurement. 31 7.6 Specific fuel consumption 31 7.6.1 Test conditions.. 31 7.6.2 Sample selection 31 7.6.3 Measurements.. 32 7.6.4 Equipment. 32 7.6.5 Protocol. 32 7.6.6 Calculations 33 7.6.7 Reporting. 34 7.7 Kitchen energy consumption measurement 35 7.7.1 Considerations. 35 7.7.2 Reporting 35 7.8 Fuel measurements for emissions by carbon balance. 36 7.8.1 Test conditions.. 36 7.8.2 Equipment 36 7.8.3 Required measurements. 36 7.8.4 Determinationofmoisturecontent 37 7.8.5 Determinationoflowerheatingvalue 37 7.8.6 Determination of fuel carbon fraction. 37 7.8.7 Protocol. 37 7.8.8 Calculations 37 7.8.9 Reporting. 39 7.9 Limitations. 40 8 Emission measurement. 40 8.1 Emission species measured 41 8.2 Emission output metrics 41 8.3 Sample selection. 41 8.4 Sampling methods 41 8.5 Emission measurements using partial capture sampling with carbon balance 41 8.5.1 Testconditions. 41 8.5.2 Required measurements. 42 8.5.3 Equipmentspecifications.. 42 8.5.4 Sampling protocol. 48 8.5.5 Gravimetric analysis of PM2.5 mass . 49 8.5.6 Thermal optical analysis of EC/OC mass 49 8.5.7 Gas sensor calibration. 49 8.5.8 Filter blanks 49 8.5.9 Leak testing 49 8.5.10 Flow rate quality control and tolerances 50 8.5.11 Dilution 50 8.5.12 Background concentration measurement 50 8.5.13 Fuel mea