Verder Scientific Inc., comprised of the Retsch, Carbolite Gero, and ELTRA brands sets the standard in high-tech equipment for quality control, research and development of solid material. The fields of activity cover sample preparation, elemental analysis as well as heat treatment of metals. ELTRA has been one of the leading manufacturers of elemental analyzers for more than 30 years for combustion analysis. Starting with Carbon and Sulfur analyzers ELTRA has expanded its product range successively with analyzers for Oxygen, Nitrogen and Hydrogen in metals like cast iron, pig iron, steel, sup (less)