除了ISO14040和ISO14044 本文件适用于任何生命周期评估（LCA）和足迹量化研究。 本文件特别涉及: —？标准化的使用及其局限性； —？权重的使用及其限制； —？权重因子的选择或开发； —？生成单一分数； —？与文件和报告相关的要求。 对于解释阶段，除了ISO14044，程序和指南: —？进行完整性、敏感性和一致性检查； —？解决不确定性和局限性； —？记录结论和建议。 本文件未规定称重面板的组成，也未规定多个- 标准决策分析。 本文件无意推荐或要求特定的加权方法或方法，或一种加权方法或其他方法的任何优先级，因为它们基于价值选择。组织具有根据预期应用和组织要求实施LCA的灵活性。

This document specifies principles, requirements and guidelines for normalization, weighting and life cycle interpretation, in addition to those given in ISO？14040 and ISO？14044. The document is applicable to any life cycle assessment (LCA) and footprint quantification study. In particular, this document addresses: —？the use of normalization and its limitations; —？the use of weighting and its limitations; —？the selection or development of weighting factors; —？the generation of single scores; —？requirements that relate to documentation and reporting. For the interpretation phase, it provides, in addition to ISO？14044, procedures and guidance for: —？performing completeness, sensitivity and consistency checks; —？addressing uncertainties and limitations; —？documenting conclusions and recommendations. This document does not specify the composition of panels for weighting nor does it specify multi-criteria decision analysis. This document does not intend to recommend or require a specific weighting approach or method or any priority of one weighting approach or method over another as they are based on value choices. Organizations have the flexibility to implement LCA in accordance with the intended application and the requirements of the organization.