ISO 5459:2011规定了技术产品文件中基准和基准系统指示和理解的术语，规则和方法。它还提供了解释，以帮助用户了解所涉及的概念。 ISO 5459:2011定义了用于建立基准或基准系统的规范操作员（见ISO 17450-2）。验证操作员（见ISO 17450-2）可以采取不同的形式（物理或数学），而不是ISO 5459:2011的主题。 基准的最大和最小材料要求的详细规则在ISO 2692中给出

ISO 5459:2011 specifies terminology, rules and methodology for the indication and understanding of datums and datum systems in technical product documentation. It also provides explanations to assist the user in understanding the concepts involved. ISO 5459:2011 defines the specification operator (see ISO 17450-2) used to establish a datum or datum system. The verification operator (see ISO 17450-2) can take different forms (physically or mathematically) and is not the subject of ISO 5459:2011. The detailed rules for maximum and least material requirements for datums are given in ISO 2692.