TY - JOUR N2 - The Centro de Desarrollo Tecnológico del Gas developed a static expansion system to enable the calibration of medium and high vacuum pressure gauges in Colombia. The system can generate pressures between 0.1 Pa and 100 kPa. The characterization tests included the evaluation of pressure stability and desorption rate, a trueness test, and the analysis of the uncertainty budget of the calibration result. The pressure stability test was successfully completed and showed the positive effect of baking on the final pressure in the system. The trueness test allowed concluding that the calibration results with the system are comparable with those obtained with a reference meter traceable to a national metrology institute. The uncertainty budget analysis indicated the dominance of the pressure of the unit under calibration and of the initial pressure in the small tank in different pressure ranges on the uncertainty of the result. A comparison with a Monte Carlo simulation led to the conclusion that in this situation, the GUM (Guide to the Expression of Uncertainty in Measurement) method is not ideal for estimating the uncertainty of the results. L1 - http://www.journals.pan.pl/Content/120626/art13_i.pdf L2 - http://www.journals.pan.pl/Content/120626 PY - 2021 IS - No 3 EP - 604 DO - 10.24425/mms.2021.137137 KW - static expansion system KW - calibration KW - vacuum KW - characterization A1 - Duarte Franco, Jonathan Javier A1 - Villamizar Mora, Carlos Mauricio A1 - García Sánchez, Carlos Eduardo PB - Polish Academy of Sciences Committee on Metrology and Scientific Instrumentation VL - vol. 28 DA - 2021.09.06 T1 - Characterization of a static expansion standard for calibrating medium and high vacuum pressure gauges SP - 593 UR - http://www.journals.pan.pl/dlibra/publication/edition/120626 T2 - Metrology and Measurement Systems ER -