Biofuel production has increased significantly in several countries in recent decades. Different evaluation techniques are required for their characterization. The study measures the properties of the obtained biodiesel and a commercial diesel sample, using the techniques of open circuit potential, linear scanning voltammetry and electrochemical impedance spectroscopy. The transesterification reaction between sunflower oil and methanol was carried out with ultrasound as the energy source. The determination of triglyceride conversion to biodiesel is performed by high performance liquid chromatography (HPLC), obtaining up to 99.79% with a yield of 93.40% at a transesterification temperature of 50 ${}^{\circ }$C for 60 min with a methanol/oil molar ratio of 6:1. The potassium hydroxide catalyst concentration was 1.0 g catalyst/100 g oil. The biodiesel samples generally showed open circuit potential (OCP) values less than 790 mV and stabilization time less than 120 s, Linear sweep voltammograms (LSV) show no reaction peaks with current densities on the order of NanoAmpere, Electrochemical impedance spectroscopy (EIS) showed a capacitive system with impedances on the order of MΩ cm${}^2$ at low frequency; This information could help characterize biofuels and other similar materials.

The design and maintenance of controlled production processes in modern industry is largely based on measurements. Metrology, the science of measurement, is important not only in industry, but in every aspect of our daily lives. Sound metrology practices would not be possible without the existence of qualified personnel in all fields of measurement, thus metrology education is essential for the development of science and technology in all countries. Aware of the needs for professional training in the field of metrology, the Universidad Politécnica de Santa Rosa Jáuregui (UPSRJ), a public university located in the state of Querétaro in Mexico, conducted a survey on the relevance of opening a new educational program. This new undergraduate program is an innovative and cutting edge educational option that was designed to satisfy the metrological needs of both industry and society.