Logo PTB

Realization of Mass

Working Group 1.81

Profile

  • Maintenance of the national prototype of the kilogram and realization of the mass scale
  • 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 Germany's national accreditation body (DAkkS/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

To top

Research/Development

  • 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

To top

To top

Services

To top

Information

To top