1、 IEC TR 62921 Edition 2.0 2016-10 TECHNICA L R EPOR T Quantification methodology for greenhouse gas emissions for computers and monitors IEC T R 62921:2016-10(en)c olourinsideInternational Electrotechnical Commission THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2016 IEC,Geneva,Switzerland All r
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11、ns for computers and monitors INTER NA TIONAL ELECTROTECHNICAL COMMISSION ICS 13.020.20;35.160 ISBN 978-2-8322-3647-5 Registered t rademark of t he Int ernational Electrot echnical Commission W arning!Make sure that you obtained this publication from an authorized distributor.c olourinsideInternatio
12、nal Electrotechnical Commission 2 IEC TR 62921:2016 IEC 2016 CONTENTS FOREWORD.5 INTRODUCTION.7 1 Scope.8 2 Terms and def initions.8 3 Symbols and abbreviations.11 4 Principles.12 4.1 Comparing streamlined CFP to comprehensive CFP.12 4.1.1 General.12 4.1.2 Level of streamlining.13 4.2 Viability of s
13、treamlined CFP.13 4.2.1 Streamlining in IEC TR 62725.13 4.2.2 Metrics f or streamlining.14 4.2.3 Principles of CFP f rom IEC TR 62725.16 4.2.4 Uncertainty.16 5 Approaches to streamlined CFP.18 5.1 General.18 5.2 Streamlining of data collection.18 5.2.1 General.18 5.2.2 Approaches to streamlining dat
14、a collection.18 5.3 Streamlining of data inputs.19 5.3.1 General.19 5.3.2 Approaches to streamlining data inputs(processing).19 6 Comparative study on existing CFP methodologies.19 6.1 Examples of current worldwide streamlined CFP methodologies.19 6.1.1 General.19 6.1.2 Product attribute to impact a
15、lgorithm(PAIA).20 6.1.3 iNEMI eco-impact evaluator.20 6.1.4 Orange Telecom environmental methodology.20 6.1.5 Japan CFP method.20 6.1.6 China CFP method.20 7 CFP product category rules.20 7.1 General.20 7.2 Goal.21 7.3 Covered products.21 7.3.1 In scope.21 7.3.2 Out of scope.21 7.4 Use of primary,pr
16、imary aggregated and secondary data.22 7.4.1 General.22 7.4.2 Allocation methods.22 7.5 Relevant emission f actors and databases.22 7.6 Functional unit.22 7.6.1 General.22 7.6.2 Lif e cycle stages included.22 7.6.3 Lif e cycle stages excluded.22 7.7 Production.22 International Electrotechnical Commission IEC TR 62921:2016 IEC 2016 3 7.7.1 General.22 7.7.2 State-of-the-art calculation recommendations.23 7.8 Chassis.23 7.8.1 State-of-the-art calculation recommendations.23 7.8.2 Additional consider
