The Physikalisch-Technische Bundesanstalt (PTB) is the national metrology institute providing scientific and technical services. PTB measures with the highest accuracy and reliability – metrology as the core competence. - Charter of PTB (PDF, 9 KB) - Organization Chart (PDF) - Annex to Organization Chart: structure (PDF) - Report by the German Council of Science and Humanities on PTB (PDF, < 500 KB) - PTB – a brief presentation - Divisions - How to find us - Visitor service Board of trustees Certification Body © Physikalisch-Technische Bundesanstalt WEB-Redaktion