A new definition of the kilogram was necessary, in order to ensure the measurement unit is independent from a physical object. more
Calibration - What is it?
This white paper establishes a clear message about calibration: what it is, and, what it is not. It shows that calibration and adjustment are not the same thing and explains where they differ. While the concept of calibration applies to all measurement devices, this paper focuses on weighing devices. Tolerances and measurement uncertainty are also discussed.