PAS 2050:2011：商品和服务在生命周期内的温室气体排放评价规范

Specification for the assessment of thelife cycle greenhouse gas emissions ofgoods and services Publishing and copyright information The BSI copyright notice displayed in this document indicates when thedocument was last issued. @ BSI 2011 ISBN 978 0 580 71382 8 The following BSI references relate to the work on this standard:Committee reference zz/1 Publication history Amendments issued since publication Contents Page Introductioniv 3 Terms and definitionsN 4 Principles and implementation 4.1 General requirements4.2 Principles -.-4.3 Supplementary requirements4.4 Record-keeping4.5 Implementation 5.1 Scope of GHG emissions and removals95.2 Time period for inclusion of GHG emissions and removals5.3 Global warming potential (GwP)105.4 Aircraft emissions and removals105.5 Carbon storage in products105.6 Inclusion and treatment of land use change105.7 Treatment of soil carbon change in existing systems115.8 Offsetting125.9 Unit of analysis12 6.1 Establishing the system boundary136.2 Cradle-to-qate GHG emission and removals assessment136.3 Material contribution and threshold136.4 Elements of the product system146.5 System boundary exclusions17 7Data18 7.1 General187.2 Data quality rules -187.3 Primary activity data187.4 Secondary data197.5 Changes in the life cycle of a product197.6 Variability in emissions and removals associated with theproduct life cycle207.7 Data sampling207.8 Non-CO, emissions data for livestock and soils207.9 Emissions data for fuel, electricity and heat207.10 Validity of analysis21 8 Allocation of emissions22 8.1 General requirements228.2 Emissions from waste228.3 Use of recycled material and recycling228.4 Treatment of emissions associated with reuse228.5 Emissions from energy production using CHP238.6 Emissions from transport23 9 Calculation of the GHG emissions of products24 10 Claims of conformity24 10.1 General2410.2 Basis of claim2510.3 Permitted forms of disclosure25 Annexes Annex A (normative) Global warming potential26Annex B (normative) Recording of supporting information28Annex C (normative) Default land use change values forselected countries29Annex D (normative) Assessment of emissions arising from recycledor recyclable material inputs31Annex E (normative) Calculation of the weighted average impactof delayed emissions arising from the use and final disposal phasesof productsEE Bibliography34 List of tables Table A.1 Direct (except for CH,) global warming potentials(GVVP) relative to CO,26Table C.1 Default land use change values for selected countries29 Foreword The revision of this Publicly Available Specification (PAS) has been undertaken byBSI to update the specification forquantifying the life cycle greenhouse gas (GHG)emissions of goods and services in line with the latest technicaladvances andcurrentexperience. Supersession The development of this PAS was co-sponsored by: This Publicly Available Specification supersedes PAS2050:2008, which is withdrawn. • Defra (Department for Environment, Food and RuralAffairs, UK);+ DECC (Department of Energy and Climate Change, UK);+ BIS (Department for Business, Innovation and Skills, UK). Use of this document It has been assumed in the preparation of this PASthat the execution of its provisions will be entrustedto appropriately qualified and experienced people, forwhose use it has been produced. Acknowledgement is given to the followingorganizations and individuals that assisted with thedevelopment of this specification: ADAS UK Limited, Dr Jeremy Wiltshire; This PAS has been prepared and published by BSI,which retains its ownership and copyright. BSI reservesthe right to withdraw or amend this PAS on receipt ofauthoritative advice that it is appropriate to do so. ThisPAS will be reviewed at intervals not exceeding twoyears, and any amendments arising from the reviewwill be published as an amended Publicly AvailableSpecification and publicized in Update Standards. Building Research Establishment (BRE) Group,Dr Joanne Mundy: Carbon Trust, Dr Graham Sinden; Centre for Environmental Strategy University of Surrey,Professor Roland Clift; Department for Environment, Food and Rural Affairs,Maureen Nowak; Environmental Resources Management (ERM),Karen Fisher; This PAS is not to be regarded as a British Standarc,European Standard or International Standard. In theevent that this PAS is put forward to form the basisof a full British Standard, European Standardor International Standard, it will be withdrawn. GHG Protocol, Dr Laura Draucker; Institute of Environmenta/ Management andAssessment, Nick Blyth; /SO TC207/5C7/VWG2 Umwe/tbundesamt Wein,Dr Klaus Raclunsky, co-convenor; Presentational conventions The provisions of this PAS are presented in roman(i.e. upright) type. Its requirements are expressedin sentences in which the principal auxiliary verb isshall*. Its recommendations are expressed in sentencesin which the principal auxiliary verb is “should*. SCA Packaging, John Swift; S/S Consu/ti