3. Verification of ISO GPS specifications

3.1 Concept and issues

In order to demonstrate the conformity of the parts produced with regard to the geometric, dimensional, surface condition, or transition specifications described in the following sections, it will be necessary to implement a product verification process. This necessarily includes a conformity check linked to the concepts of measurement results or inspection results:

• The measurement will enable a quantified value (R) to be defined, the measurement result for a given part in relation to a characteristic (dimensional, geometric, surface condition, or transition). This value (R) is intrinsically associated with a measurement uncertainty (U), which can be expressed as the complete measurement result: R ± U (see the guide for the...