German state railway norms

In German railway engineering, norms (Normalien) are standards for the design and production of railway vehicles. In the 1880s and 1890s, Prussian norms were developed for the locomotives, tenders and wagons of the Prussian state railways under the direction of the railway director responsible for railway engineering, Moritz Stambke. Later, these were largely adopted by the other state railways (Länderbahnen) in Germany.