Mass

The Mass Laboratory realizes the SI unit of Mass via the maintenance of four 1kg reference standards of cylindrical shape manufactured from high quality stainless steel and traceable to the International Prototype Kilogram. The mass scale from 1 mg to 500 kg is disseminated by use of 6 automated high accuracy mass comparators and appropriate weighing schemes. The reliability of measurements performed in the laboratory is maintained by implementing a measurement quality assurance program based on statistical process control.

The Laboratory performs mass standard calibrations for the determination of true and conventional mass in the following ranges:

1 mg – 1kg with relative uncertainty to 0,15 ppm

1 kg – 50kg with relative uncertainty to 0,5 ppm

50 kg – 500 kg with relative uncertainty to 5 ppm