ISO 13399-50:2013 specifies a reference dictionary for reference systems for cutting tools, together with their descriptive properties and domains of values.

ISO 13399-50:2013 specifies a reference dictionary containing:

• definitions and identifications of the classes of reference systems for cutting tools, with an associated classification scheme;
• definitions and identifications of the data element types that represent the properties of reference systems for cutting tools;
• definitions and identifications of domains of values for describing the above-mentioned data element types.

The following are within the scope of ISO 13399-50:2013: standard data that represent the various classes of connection systems for cutting tools; standard data that represent the various properties of connection systems for cutting tools; standard data that represent domains of values used for properties of connection systems for cutting tools; standard data that represent the various classes of reference systems for cutting tools; standard data that represent the various properties of reference systems for cutting tools; standard data that represent domains of values used for properties of reference systems for cutting tools; one implementation method by which the standard data defined in ISO 13399-50:2013 can be exchanged (ISO 10303-21).