Paper Authors.

Abstract. A pressure comparison was carried out within the Interamerica Metrology System (SIM), in order to estimate the level of agreement for the realization of the quantity and the uncertainty associated to its measurement. The comparison participants were a least, on National Metrology Institute (NMI) from each of the five SIM areas. The comparison was carried out up to 100 MPa, using an electronic comparison standard with 1 · 10-4 of full-scale accuracy. The Centro Nacional de Metrología, CENAM, in Mexico, was the coordina or and pilot laboratory. The results obtained the deviations graphs that include the uncertainty for each participating laboratory are pres nted in this document. 1