Resumo

BARRERA-GARCIA, Aníbal et al. Verification of metrological characteristics of a Coriolis flow meter used in fiscal transfer. Ing. invest. y tecnol. [online]. 2017, vol.18, n.4, pp.433-444. ISSN 2594-0732.

This article describes a procedure for the evaluation of the quality of measurements. The proposal guarantees the evaluation and improvement of the management of flow measurements, using techniques related to the six sigma methodology. This is applied to an oil refining company, specifically in the process of receiving, storing, handling and delivering liquefied petroleum gas. For the collection and processing of information, techniques such as: working with experts, teamwork, repeatability study, stability, linearity, experimental design were used. It makes use of classic quality tools and process management. As fundamental results of the investigation, the main weaknesses were identified from the metrological point of view, the state of the metrological characteristics of the Coriolis mass flowmeter used in the delivery of regular liquefied petroleum gas by truck loading was evaluated. A repeatability and reproducibility study is carried out based on the experimental design in said operation. Finally, a set of actions are proposed that contribute to the improvement of the quality of the measurements, as well as their management.

Palavras-chave : repeatability; reproducibility; measurements; instruments; stability.