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Physikalisch-Technische Bundesanstalt (PTB) [Link leads to the imprint of the PTB]

Physikalisch-Technische Bundesanstalt (PTB)
Represented by the President Prof. Dr. Cornelia Denz

PTB Braunschweig:
Bundesallee 100
D-38116 Braunschweig
Phone: +49 (0)531 592-0
Email: info(at)

PTB Berlin:
Abbestraße 2-12
D-10587 Berlin-Charlottenburg
Phone: +49 (0)30 3481-0
Email: info(at)

Value added tax identification number/VAT-Nr.: DE811 240 952
ISNI: 0000 0001 2186 1887 

Responsible for this website's maintenance and content:
Physikalisch-Technische Bundesanstalt
Section 9.32 Asia
Bundesallee 100
D-38116 Braunschweig

Patrick Dolle
Phone: +49 (0)531 592-8264



The information and services provided by PTB have been compiled with the required care and are based on the latest state of the art. Using the information to be accessed is at your own risk. PTB does not assume liability for the contents of sources outside PTB, to which it only provides access.