In period from March 18 – 21, 2013, two representatives from Directorate of Measures and Precious Metals was attended in Training cours - Calibration of liquid flow meters and uncertainty evaluation in calibration, organized by VSL - Dutch Metrology Institute in Dordrecht. Training was held by metrologists Mr. Erik Smith, Mr. Rens van den Brink and by Mr. Ros Rath responsible for the National Standards for the traceability of liquid flow meters in the Netherlands.

The following areas were included in the Training: Gravimetrical, volumetric, master meter, pipe prover, tower calibration methods; Calibration models (calculation of measurement error etc.); Introduction to uncertainty analysis of the calibration model; Viscosity, density, temperature and pressure effects during calibration; Specific requirements for the calibration of different flow meter types like turbine, pd, mass, ultrasonic, EMF, Delta P, and others; Interpretation of BIPM, OIML, API and ISO documents concerning flow measurement.