Walther Mathias Hempel (1851-1916) was a German chemist who designed apparatus for technical gas analysis that was widely used throughout the world. This example of his apparatus is copied from an original in the Deutsches Museum in Munich.
Ref: Walter M. Hempel, New Methods for the Analysis of Gases (1880).
Our collection database is a work in progress. We may update this record based on further research and review. Learn more about our approach to sharing our collection online.