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Brochures on the International System of Units (SI)

The seven base units of the International System of Units (SI) form the basis of almost all of PTB's work. If you would like to know more about the SI or the units, please take a look at our extensive selection of free brochures and journals on this subject. 

You can download the Info sheets as a pdf file or order free of charge at PTB if aviable. 

The Legal Units in Germany

This brochure is being revised at  the moment and will be available again at the end of 2019.

    PTB Info Sheet "The new SI"

    The new International System of Units (SI)

    The idea - The experiments - Trouble with the kilogram - The event - The news SI at school - the news SI in science - The new SI in technology - The new SI in public life

    Experimente für das neue Internationale Einheitensystem (SI)

    (in German only, English issue will follow)

    PTB-Mitteilungen 2/2016, 116 Seiten, 2016.

    In ihrem eigenen Fachjournal, den PTB-Mitteilungen, beschreiben Wissenschaftler der PTB die entscheidenden Experimente und den generellen Forschungsstand zum neuen Internationalen Einheitensystem.

    Brochure "Das Internationale Einheitensystem (SI)" (in German only)

    Das Internationale Einheitensystem (SI) (in German only)

    German version of the BIPM "SI Brochure". 8. edition, Special edition of PTB-Mitteilungen, 2007

    At the moment, this German (printed) version is not available.

    The original English version can be found on the Opens external link in new windowBIPM webpages.

    maßstäbe Heft 1: Dimensionen der Einheiten (2001, 56 Seiten)

    Die Print-Ausgabe ist leider vergriffen

      Namensgeber physikalischer Einheiten

      Erschienen als Heft 2.2017 der PTB-Mitteilungen, 88 Seiten, 2017.

      Mehr zum Thema SIMehr zum Thema SI