8. Glossary
Balance de pression ou balance manométrique ; Pressure balance or piston gauge
A standard used to materialize pressure from the basic quantities of the SI system. The principle consists in balancing the force generated by the pressure applied to the cross-section of a piston-cylinder assembly with the force due to the local field of gravity acting on the masses resting on the piston head.
Pressure distortion coefficient; Coefficient de déformation
Coefficient associated with a piston-cylinder assembly representing the variation in cross-section due to pressure, expressed in Pa –1 .
Ensemble piston-cylindre ; Piston-cylinder unit
The main metrological element of the manometric balance, the pressure delivered by the standard...
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French and European standards. French Standards Association (AFNOR) http://www.afnor.fr
- Incertitude de mesure. Partie 3 : guide pour l'expression de l'incertitude de mesure (GUM : 1995). - NF ISO/IEC GUIDE 98-3 - 2014
- Prescriptions générales concernant la compétence des laboratoires d'étalonnages et...
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