BS PAS 2050-2008 生命周期内温室气体排放评价规范.pdf

PUBLICLY AVAILABLE SPECIFICATION PAS 2050:2008 Specification for the assessment of the life cycle greenhouse gas emissions of goods and services ICS code: 13.020.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW PAS 2050:2008 Publishing and copyright information The BSI copyright notice displayed in this document indicates when the document was last issued. This Publicly Available Specification comes into effect on 29 October 2008. © BSI October 2008 ISBN 978 0 580 50978 0 Amd. No. Date Comments © BSI October 2008 标准分享网 免费下载 PAS 2050:2008 Contents Page Foreword ii 0 Introduction iv 1 Scope 1 2 Normative references 1 3 Terms and definitions 2 4 Principles and implementation 6 5 Emission sources, offsetting and unit of analysis 7 6 System boundary 12 7 Data 17 8 Allocation of emissions 22 9 Calculation of the GHG emissions of products 24 10 Claims of conformity 25 Annexes Annex A Global warming potential (normative) 26 Annex B Calculation of the weighted average impact of emissions arising from the use phase and final disposal phase of products (normative) 29 Annex C Calculation of the weighted average impact of carbon storage in products (normative) 30 Annex D Calculation of emissions arising from recyclable material inputs (normative) 31 Annex E Default land use change values for selected countries (normative) 32 Bibliograph