Country, region and language selection

International websites


Americas / Oceania

Africa and Middle East

Asia / Pacific


The term SI is the abbreviation for "Système international d’unités", which is the international system of units. This system defines a number of base units that can be combined to create further units.

In the context of mechanical and hydrodynamic quantities, the base units are m for length, s for time and kg for mass.

The SI system is based on the International System of Quantities (ISQ), was introduced as long ago as 1960 and is now the world's most widely used system of units for physical quantities.



Become part of our team!

Become part of our team!

As an international employer, KSB offers exciting challenges in many different areas.

Regardless whether you are an experienced professional or a pupil, student or graduate ─ learn more about our work culture and find job openings from all over the world in our job portal.