3. Transfer instruments

This chapter is dedicated to measuring instruments whose main function is to connect previous instruments. They are often referred to by suppliers as "calibrators", a term wrongly derived from the English language. We propose other names based on their functions.

These instruments are designed to measure pressure (digital manometers), generate and measure it (calibrators) and also regulate it (generator-measurers). In the following, we'll explain the field of application of each and the metrological performances that can be achieved. These three families of instruments are easier to use than the reference standards discussed in 4

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Transfer instruments

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Pressure scales

Bibliography

(1) - ERARD (L.), REPOSEUR (P.) - Traçabilité et raccordement aux étalons nationaux. - AFNOR MTL-III-10-20 (2003).
(2) - BRIDGMAN (P.W.) - Proc. Am. Acad. Arts Sci., 47 (1911).
(3)...

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

BNAE

Estimation des incertitudes sur les mesures de pression - RM Aéro...

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...