4. Pressure scales
This chapter is dedicated to reference instruments, whether used by a national metrology institute, an accredited calibration laboratory or an industrial laboratory. In the current state of instrumental technology, the pressure balance is the only instrument, in the high-pressure field, that can materialize pressure from the basic quantities of the SI system, and disseminate it with the best possible level of uncertainty.
This chapter also deals with the multiplier, a technology transfer instrument derived from the pressure balance. It is associated with it in its use, enabling extrapolation of the pressure measured by a balance.
4.1 Different types of pressure scales
The basic principle of the pressure balance is that of the hydraulic...
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Pressure scales
Conclusion
Bibliography
Standards and norms
AFNOR/ISO
- Valeur de la pesanteur terrestre - NF X02-011 - 1974
- Exigences générales concernant la compétence des laboratoires d'étalonnages et d'essais - ISO/IEC 17025 - 2005
- Measurement uncertainty – Part 3: Guide to the expression of uncertainty in measurement (GUM : 1995) - NF ISO/IEC Guide 98-3 - 2014
- Estimation des incertitudes sur les mesures de pression - RM Aéro...
BNAE
Regulations
(Non-exhaustive list)
Décret n° 61-501 du 3 mai 1961 relatif aux unités de mesure et au contrôle des instruments de mesure (consolidated version as of June 13, 2020).
Directive 97/23/EC of the European Parliament and of the Council of May 29, 1997 on the approximation of the laws of the Member States concerning pressure equipment (OJ L 181 of July 9, 1997).
Directive...
Directory
Organizations – Federations – Associations (non-exhaustive list)
Association française de normalisation (AFNOR) : http://www.afnor.fr
Bureau International des Poids et Mesures (BIPM) : http://www.bipm.fr
Bureau de normalisation de l'aéronautique...
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