TS EN ISO 14660-1

TS EN ISO 14660-1 is a terminology and definitions standard for the general terms used for geometrical features of workpieces within the geometrical product specification (GPS) framework. In GPS practice, consistent terminology is essential so that drawings, measurements and tolerancing refer to the same geometrical concepts.

The technical language of geometrical features

The subject of this standard is the general vocabulary used when naming geometrical features such as surfaces, edges, axes, planes or cylinders. In general technical context, these terms help distinguish between the actual physical form of a workpiece and its idealised geometric representation. That distinction matters whenever design, manufacturing and inspection teams need to communicate about the same feature without ambiguity.

Rather than prescribing a measurement method or numerical acceptance limit, the standard organises the common language used to describe geometrical characteristics. It therefore supports drawing interpretation, metrology and quality control, but it should not be read as a product conformity standard on its own.

Purpose and boundary of the scope

• Collects general terms related to geometrical features of workpieces.
• Standardises definitions to support clearer technical communication.
• Provides a shared reference for drawings, measurement and tolerancing.
• Does not specify a particular machine, material or test setup.

This listing refers to a withdrawn edition of TS EN ISO 14660-1. As part of the ISO/GPS terminology system, it serves as a foundational reference for keeping geometric definitions and measurement-related language consistent across technical documentation.