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Doc 9501. Vol 2
Environmental Technical Manual. Volume II - Procedures for the Emissions Certification of Aircraft Engines
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Approved by and published under the authority of the Secretary GeneralINTERNATIONAL CIVIL AVIATION ORGANIZATIONDoc 9501Environmental Technical ManualVolume II Procedures for the Emissions Certification of Aircraft EnginesFourth Edition, 2020
Approved by and published under the authority of the Secretary GeneralINTERNATIONAL CIVIL AVIATION ORGANIZATIONDoc 9501Environmental Technical ManualVolume II Procedures for the Emissions Certification of Aircraft EnginesFourth Edition, 2020
Published in separate English, Arabic, Chinese, French, Russian and Spanish editions by the INTERNATIONAL CIVIL AVIATION ORGANIZATION 999 Robert-Bourassa Boulevard, Montral, Quebec, Canada H3C 5H7 For ordering information and for a complete listing of sales agents and booksellers, please go to the ICAO website at www.icao.int First edition, 2010 Second edition, 2014 Third edition, 2018 Fourth edition, 2020 Doc 9501, Environmental Technical Manual Volume II, Procedures for the Emissions Certification of Aircraft Engines Order Number 9501-2 ISBN 978-92-9258-919-6 ICAO 2020 All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted in any form or by any means, without prior permission in writing from the International Civil Aviation Organization.
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Table Of Contents
COVER PAGE
AMENDMENTS
TABLE OF CONTENTS
FOREWORD
NOMENCLATURE
SECTION 1 INTRODUCTION
1.1 PURPOSE
1.2 FRAMEWORK
1.3 EMISSIONS COMPLIANCE DEMONSTRATION PLAN
1.4 EMISSIONS CERTIFICATION REPORT
SECTION 2. GUIDANCE MATERIAL
PART I. DEFINITION AND SYMBOLS
CHAPTER 1. DEFINITIONS
CHAPTER 2. SYMBOLS [RESERVED]
PART II. VENTED FUEL
CHAPTER 1. ADMINISTRATION
CHAPTER 2. PREVENTION OF INTENTIONAL FUEL VENTING
PART III. EMISSIONS CERTIFICATION
CHAPTER 1. ADMINISTRATION
CHAPTER 2. TURBOJET AND TURBOFAN ENGINES INTENDED FOR PROPULSION ONLY AT SUBSONIC SPEEDS
CHAPTER 3. TURBOJET AND TURBOFAN ENGINES INTENDED FOR PROPULSION AT SUPERSONIC SPEEDS
CHAPTER 4. PARTICULATE MATTER EMISSIONS
PART IV. NON-VOLATILE PARTICULATE MATTER ASSESSMENT FOR INVENTORY AND MODELLING PURPOSES [RESERVED]
APPENDIX 1. MEASUREMENT OF REFERENCE PRESSURE RATIO
APPENDIX 2. SMOKE EMISSION EVALUATION
APPENDIX 3. INSTRUMENTATION AND MEASUREMENT TECHNIQUES FOR GASEOUS EMISSIONS
ATTACHMENT A TO APPENDIX 3. SPECIFICATION FOR HC ANALYSER
ATTACHMENT B TO APPENDIX 3. SPECIFICATION FOR CO AND CO2 ANALYSERS
ATTACHMENT C TO APPENDIX 3. SPECIFICATION FOR NOX ANALYSER
ATTACHMENT D TO APPENDIX 3. CALIBRATION AND TEST GASES
ATTACHMENT E TO APPENDIX 3. THE CALCULATION OF THE EMISSIONS PARAMETERS - BASIS, MEASUREMENT CORRECTIONS AND ALTERNATIVE NUMERICAL METHOD
ATTACHMENT F TO APPENDIX 3. SPECIFICATIONS ADDITIONAL DATA
APPENDIX 4. SPECIFICATIONS FOR FUEL TO BE USED IN AIRCRAFT TURBINE ENGINE EMISSION TESTING
APPENDIX 5. INSTRUMENTATION AND MEASUREMENT TECHNIQUES FOR GASEOUS EMISSIONS FROM AFTERBURNING GAS TURBINE ENGINES [RESERVED]
APPENDIX 6. COMPLIANCE PROCEDURE FOR GASEOUS EMISSIONS, SMOKE AND PARTICULATE MATTER EMISSIONS
APPENDIX 7. INSTRUMENTATION AND MEASUREMENT TECHNIQUES FOR NON-VOLATILE PARTICULATE MATTER EMISSIONS
ATTACHMENT A TO APPENDIX 7. REQUIREMENTS AND RECOMMENDATIONS FOR nvPM SAMPLING SYSTEM
ATTACHMENT B TO APPENDIX 7. SPECIFICATION FOR nvPM MASS INSTRUMENT AND CALIBRATION
ATTACHMENT C TO APPENDIX 7. SPECIFICATIONS AND CALIBRATION FOR THE VOLATILE PARTICULATE REMOVER AND THE nvPM NUMBER INSTRUMENT
ATTACHMENT D TO APPENDIX 7. SPECIFICATIONS FOR ADDITIONAL DATA [RESERVED]
ATTACHMENT E TO APPENDIX 7. PROCEDURES FOR SYSTEM OPERATION
APPENDIX 8. PROCEDURES FOR ESTIMATING NON-VOLATILE PARTICULATE MATTER SYSTEM LOSS CORRECTIONS [RESERVED]