1.1 本实践提供了一种方法，用于评估涉及生物质能源和化学品的产品、过程或项目的相对可持续性。 1.2 这些评估将有助于做出明智的决定，从而产生更可持续的结果。 1.3 该实践提供了一种方法，包括设定目标和目的、确定适当的背景和选择适当的指标，以确保对相对可持续性进行可比、等效和可复制的评估，其中至少有一种选择可从生物质中获得。 1.4 这种做法的目标是减少市场中的偏见和扭曲，促进公平比较选项，关注反映利益相关者优先事项的评估，并支持持续改进以获得更可持续的结果。 1.5 本标准并非旨在解决与其使用相关的所有安全问题（如有）。本标准的用户有责任在使用前制定适当的安全和健康实践，并确定监管限制的适用性。

1.1 This practice provides a methodology for assessing the relative sustainability of products, processes or projects involving energy and chemicals derived from biomass. 1.2 These assessments will facilitate informed decisions, leading to more sustainable outcomes. 1.3 This practice provides a methodology that includes setting goals and objectives, identifying the appropriate context and selecting appropriate indicators that ensure comparable, equivalent and replicable assessments of relative sustainability where at least one option is available from biomass. 1.4 The objectives of this practice are to reduce bias and distortion in the marketplace, facilitate fair comparison of options, focus on assessments reflecting stakeholder priorities, and support continual improvement for more sustainable outcomes. 1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.