ISO 5459:2011 PDF

Scope: This International Standard specifies terminology, rules and methodology forthe indication and understanding of datums and datum systems in technical product documentation. This International Standard also provides explanations to assist the User in understanding the concepts involved. This International Standard defines the specification operator (see ISO 17450-2) used to establish a datum or datum System，The verification operator (see 1SO 17450-2) can take different forms (physically or mathematically) and is not the subject of this International Standard. NOTE The detailed rules for maximum and least material requirements for datums are given in 1SO 2692.

ISO 5459:2011 Referenced Document

ISO 1101:2004 Geometrical Product Specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, location and run-out
ISO 17450-1 Geometrical product specifications (GPS) - General concepts - Part 1: Model for geometrical specification and verification*， 2011-12-01 Update
ISO 3098-0 Technical product documentation - Lettering - Part 0: General requirements
ISO 81714-1 Design of graphical symbols for use in the technical documentation of products - Part 1: Basic rules

2011 ISO 5459:2011 Geometrical product specifications (GPS) - Geometrical tolerancing - Datums and datum systems
1981 ISO 5459:1981 Technical drawings; Geometrical tolerancing; Datums and datum-systems for geometrical tolerances