本国际标准规定了表达建筑物整体能源效能的方法。这包括总体数字能量性能指标和反对基准的课程。它还包括表达能源性能要求的方法。此外，还包括建筑物能源性能认证方法。 该标准提供了不同的（替代）选项，包括绝对指标，例如每单位面积的能源性能，以及与参考建筑物的能源性能（名义建筑方法）相比的能源性能等相对指标。随附的技术报告（EN ISO/TR 52003-2）将提供每个选项的理由，示例和所有翔实程序。本国际标准不包括系统或组件级别的数字指标（这些将由EN ISO 52017-1（建筑结构和建筑构件）以及技术建筑系统的类似标准涵盖。 以ISO为标准，以“维也纳协定”下的ISO为首

The set of EPB assessment standards produces a great number of overall and partial EPB indicators as outputs. ISO 52003-1:2017 provides general insight to both private parties and public regulators (and all stakeholders involved in the regulatory process) on how to make good use of these outputs for different purposes (post-processing). ISO 52003-1:2017 describes the relation between the EPB indicators and the EPB requirements and EPB ratings, and it discusses the importance of project-specific, tailored values as requirement or reference for certain EPB indicators. ISO 52003-1:2017 also includes a couple of possible EPB labels and it lists the different steps to be taken when establishing an EPB certification scheme. ISO 52003-1:2017 provides standardized tables for reporting in a structured and transparent manner the choices that are to be made with respect to overall EPB requirements. The tables are non-restrictive, thus allowing for full regulatory flexibility. ISO 52003-1:2017 does not provide such tables for partial EPB requirements (related to the fabric or technical buildings systems), as this is dealt with in other documents. NOTE Table 1 in the Introduction shows the relative position of ISO 52003-1:2017 within the set of EPB standards in the context of the modular structure as set out in ISO 52000-1.