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3. Impact of the measure on product definition
Knowledge of the standard is not enough to ensure that requirements are written in such a way that the final product, produced and measured, can be considered unambiguously compliant. The control operation must be anticipated at the time the requirement is written.
Here are two concrete examples.
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Example 1: coaxiality of two shaft spans (figure 10 )
This type of writing, which complies with the requirements of the standard and reflects the designer's idea (in this case, for example, the correspondence of the axes of two bearing seats), may prove unsuitable. In this case, there's a good chance that all the parts measured will not conform to the drawing,...
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Impact of the measure on product definition
Example of the interpretation of a localization requirement
Works
Websites
• Afnor website : http://www.afnor.fr
• ISO website : http://www.iso.ch
• Site de MTPO : Collège français de métrologie : Working group on three-dimensional optical measurements http://www.metride.fr
...Standards
In addition to the standards cited in the article, the following standards were also used: NF E 60-100/ISO 230-1
Articles
• Dossier : The GPS concept – improving competitiveness through specification – Technologies et formations n° 84, May 1999, pp. 5 to 42, PYC édition.
• Dossier: GPS on the move – CETIM-Informations n° 159, July 1998, pp. 15 to 48, CETIM.
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