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An Interlaboratory Stopwatch Comparison in the SIM Region



Michael A. Lombardi, Raul Solis, Harold Sanchez, J. Mauricio Lopez-Romero, Francisco Jimenez, Henry Postigo, Daniel Perez, Walter Adad, Victor Masi, Ahmed Ibrahim, Bill Hoger, Ricardo de Carvalho, Jose L. Kronenberg, Gustavo C. Orozco, Theodore Reddock, Leonardo Trigo


Stopwatches and timers are used for an almost unlimited number of applications and are among the most common devices calibrated by metrology laboratories. In large nations, stopwatch calibrations are typically handled by secondary laboratories, such as state or private laboratories in the United States. However, in smaller nations, the national metrology institute (NMI) will often accept stopwatches for calibration against the national standard. This paper describes and presents the results of an interlaboratory stopwatch comparison that was conducted by the NMIs of the Sistema Interamericano Metrologia (SIM) region from May 2010 through February 2011. The interlaboratory comparison involved two travelling stopwatches and 13 NMIs.
Measure: The Journal of Measurement Science


calibrations, frequency, time interval


Lombardi, M. , Solis, R. , Sanchez, H. , , J. , Jimenez, F. , Postigo, H. , Perez, D. , Adad, W. , Masi, V. , Ibrahim, A. , Hoger, B. , de, R. , Kronenberg, J. , Orozco, G. , Reddock, T. and Trigo, L. (2011), An Interlaboratory Stopwatch Comparison in the SIM Region, Measure: The Journal of Measurement Science (Accessed April 22, 2024)
Created September 1, 2011, Updated February 19, 2017