Logo PTB
Gateway for politics


Here you will find the news as well as a short guide to PTB


On the occasion of their 26th General Conference on Weights and Measures (Conférence Générale des Poids et Mesures, CGPM) on 16 November 2018 in Versailles, the signatory states of the Metre Convention resolved to fundamentally reform the International System of Units (SI). This resolution stipulates that, in the future, all SI units will be based on the values laid down for seven selected natural constants. In passing this resolution, the General Conference has followed a recommendation issued by the International Committee on Weights and Measures (Comité international des poids et mesures, CIPM) – the world’s supreme expert committee on metrology. The new definitions of the units will come into force on 20 May 2019, World Metrology Day.

[ more ]

Eine neue Publikation ist jetzt bei der PTB beheimatet: das Online- Journal „Junge Wissenschaft“ (https://www. junge-wissenschaft.ptb. de). Ausschließlich „junge Forscher“ (Altershöchstgrenze 23 Jahre) können hier nach den üblichen Regeln wissenschaftlichen Publizierens, einschließlich eines Peer-review-Prozesses, veröffentlichen. Die Junge Wissenschaft wird von der Presse- und Öffentlichkeitsarbeit der PTB verlegt, herausgegeben und redaktionell betreut. Auch in der Vergangenheit hat die PTB eine wesentliche Rolle bei der Publikation dieser Zeitschrift gespielt, beginnend mit engen Kontakten zwischen dem Gründungsherausgeber der Zeitschrift (Prof. Dr. Paul Dobrinski, 1927 – 2009) mit dem damaligen Präsidenten der PTB (Prof. Dr. Ernst O. Göbel). Hintergrund ist eine gemeinsame Interessenlage der Zeitschrift und der PTB, nämlich die Förderung des (natur)wissenschaftlichen Nachwuchses.

[ more ]

Opens internal link in current windowMore news   

A brief introduction to PTB

Entrance of PTB Braunschweig

Here in a nutshell are a few Opens internal link in current windowFacts about PTB, or read the current facts and figures from the Opens internal link in current windowAnnual Report. If you want more details, here you will find a Opens internal link in current windowDescription of Tasks of PTB. Furthermore, we recommend our general Info Sheet about PTB which you can download in the right-hand column as a pdf file.

Important research topics

The SI with its 7 base units
In the new International System of Units (SI), seven fundamental constants are determined as defining reference values. (Diagram: PTB)

We present you with an overview of PTB's diverse research landscape as well as some especially highlighted topics in the chapter l Opens internal link in current windowResearch & Development, including the key strategic points in European metrology research (Opens internal link in current windowChallenges and Prospects) as well as the various success stories surrounding Opens internal link in current windowPTB's Technology Transfer. How firmly PTB is integrated in the international research landscape you can see briefly, on the one hand, in the Opens internal link in current windowOverview and, on the other hand, we individually present the respective research institutes of the worldwide metrology landscape in the chapter Opens internal link in current windowInternational Affairs.


Evaluation report (in Geman only)
Stand: Januar 2012

In 2002, PTB as a whole was evaluated – with an excellent outcome. In 2008, an evaluation of PTB research followed, carried out by the Wissenschaftsrat (German Council of Science and Humanities) with a subsequent Implementation Report in 2012. You will find more about this at Opens internal link in current windowPTB in the World of Research or in the pdfs of the evaluation reports which you can download in the right-hand column.

The next evaluation will follow in 2016.