scope:

The aim of this document is to document the characteristics of precision measuring instruments for testing the geometric accuracy of machine tools, operating either under no-load or under quasi-static conditions.

Where necessary, reference is made to the appropriate International Standards.

The measuring instruments for operational testing of machine tools [vibrations (ISO/TR 230-8), noise (ISO 230-5), stick-slip motion of components, etc.] as well as instruments for checking of other characteristics of machine tools (speeds, feeds, temperature) are not covered in this document. The measuring instruments for checking of workpiece geometry (size, form, etc.) are not covered by this document either.

This document has list style construction for ease of search and identification of each instrument's characteristics.

Sources of uncertainty of instruments and measurements are described in this document for more accurate measurement procedures.