Responsible for this web site is

Dr. David Vartsky           Soreq NRC
          Telephone +972-8-9434589

Dr. Volker Dangendorf

          Physikalisch-Technische Bundesanstalt
          Telephone +49-531-592 6510

The information provided by PTB and the services referred to have been compiled with the required care and are based on the latest state of the art. Use of the information that can be polled is at your own risk. PTB is not answerable for the contents of sources outside PTB to which it only provides access.

WEB-Master: Kai Tittelmeier (
 Project goals

last update 18.08.2009