The PTB department for International Coorperation is responsible for the contents of this website.

Physikalisch-Technische Bundesanstalt (PTB)
Represented by the President Prof. Dr. Joachim Hermann Ullrich

Bundesallee 100
D-38116 Braunschweig
Phone: +49 (0)531-592-0
E-mail: info@ptb.de

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

Web editorial staff:

Stefan Wallerath

Phone: +49 (0)531 592-8255
Fax: +49 (0)531 592-8225
E-mail: see@ptb.de

Information security officer:

Dr. Hans-Georg Kerkhoff
Phone: +49 (0)531 592-8462
Fax: +49 (0)531 592-69 8462
E-mail: IT-SiBe@ptb.de

Data protection officer:

Jan Rethmeier
Phone:  +49 (0)531 592-9085
Fax: +49 (0)531 592-9108
E-mail: datenschutz@ptb.de