International Standard
ISO 5459
Geometrical product specifications (GPS) — Geometrical tolerancing — Datums and datum systems
Reference number
ISO 5459
Edition 3
© ISO 2024
Under publication
Under publication
Final production steps (up to seven weeks).
Will replace ISO 5459:2011

Abstract

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.

General information

Life cycle

Got a question?

Check out our Help and Support

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

  2. Store
  3. Standards catalogue
  4. ICS
  5. 01
  6. 01.100
  7. 01.100.20
  8. ISO 5459