In the product testing field, DVGW has testing facilities of its own for materials, components and products related to gas and water. In addition it cooperates with more than 40 DVGW-recognized testing laboratories in the field of gas technology, electrical engineering, mechanical engineering, material testing, plastics, drinking water and hygiene. The services offered by DVGW in this area are available to all companies in the gas and water sectors in Germany and other countries.