WORLD Metrology Day, an annual event during which the impact of measurement on our daily lives is celebrated around the world, falls on May 20.
Defined as the science of measurement, metrology allows us to set common standards for units and measuring instruments, including weighing scales, equipment for diagnosing health problems, pumps at fuel stations, and the Global Positioning System (GPS). Accurate and internationally accepted measurements are essential for economic progress, technological innovation and scientific applications.