Realization of Mass
Working Group 1.11
Unit of massTasks
- Maintenance of the
National Prototype of the Kilogram and realization of the unit of mass, the kilogram - Dissemination of the
unit of mass by verification and calibration of weights and mass standards in the range from 1 mg to 5000 kg - Research and development on the field of mass determination
- Cooperation with national and international organizations
- Participation in national and international comparison measurements
- Expert activity for the German Calibration Service (DKD)
- Training and advicing with the set-up and development of mass laboratories in other metrological institutes as part of the technical cooperation
- Calibration and approval of devices for the bulk density measurement of cereals
In the frame of research and development, the following topics are covered:
- Experimental determination of the air density by weighing specially designed buoyancy artefacts in vacuum and in air
- Investigation on convection influences on the weighing process
- Investigation of the magnetic properties of mass standards and weighing instruments and of the corresponding interactions
- Investigation on the influences of sorption and cleaning and on the long term stability of mass standards
Contact
Dr. Michael Borys
Phone: +49-531 592-1110
E-Mail: 
Michael.Borys@ptb.de
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