ISO 5459:2024
Geometrical product specifications (GPS) — Geometrical tolerancing — Datums and datum systems
Product Details
This document 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 this document.
NOTE The detailed rules for maximum and least material requirements for datums are given in ISO 2692.