In Germany “DVGW – German Technical and Scientific Association for Gas and Water” is the competence network for all questions related to gas and water. DVGW CERT GmbH is the largest gas and water industry certification body in Europe, covering all the certification procedures required in the gas and water. DVGW Deutsche Vereinigung des Gas- und Wasserfaches e.V.. Technisch- wissenschaftlicher Verein. Josef-Wirmer-Str D Bonn. Telefon: +49 (0)

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Documents ready for download – click here! Together with test laboratories, the company certifies and monitors gas and water industry products, quality and environmental management systems to DIN EN ISO vvgw. Standardisation List of English Standards. Safety and Quality Dgw. 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.

With a DVGW CERT certificate, product manufacturers, specialist companies, utilities and experts can demonstrate to their customers and market partners that they comply with w720 state of the art in their field of activities. The main objective of all certification work is to ensure that there are no safety, hygiene or environmental objections to the products and companies certified.

It is necessary that in addition to various technical and mechanical requirement also be guaranteed the hygienic. Vocational Training and Qualifications. Impartiality, quality and reliability are the top priorities in certification work.



Service Portfolio Testing and Certification. List of English Standards. If you continue to use the website, you agree to the use of cookies. Water treatment Water transmission Water distribution network House connection Dams and hydropower Irrigation Fire protection network Industrial water applications W70 and treatment.

Certificate stating our DVGW-Recognition

Our subsidiaries do not just focus on sales activities but also on service, repair and spare parts supply Materials which are used in the drinking water sector, must have a surface svgw excludes an unwanted surface fouling by microorganism. Gas and Energy Transition.

Imprint Terms Print Sitemap. Search Contact Heiko Delong Tel.: This approach ensures that the individual procedures are tailored to the needs of the gas and water industries and are tightly meshed. DVGW standard W describes a method for the assessment of enhancement of microbial growth on dvgs materials in contact with drinking water.

Technical innovations can only be beneficial dfgw they actually work in practice. Under certain conditions, a prolongation for further five years is possible. Thus it is a material test and only for multilayer systems such as composite pipes the test is carried out on the product. For disclosure of recipe all the substances and additives have to be identified. Information and Know-How Transfer.

DVGW W – Drinking water approval for materials Materials which are used in the drinking water sector, must have a surface which excludes an unwanted surface fouling by microorganism. The test starts with the full disclosure of the recipe.


Efficient Use of Gas. This list must include the chemical name of the chemical compound, including the CAS-No.

Safety and Security Technical Safety Gas. The recipe means the detailed chemical composition of the material from which the product is made. Testing and Certification Ensuring safety, hygiene and quality standards.

The certificate automatically becomes invalid if the requirements, even for the composition, change, or if the recipe or production is modified. Nitrates and Drinking Water. The validity of a W test certificate is based on elsewhere specified regulations but ends 5 years after date of issue. The services are tailor-made to meet the requirements of the industry and to ensure efficient meshing of the various processes. ERHARD is one of the most important manufacturers of water valves in the world with experience dating back over years The recipe must, dependent on the type of material, be in accordance with the actual positive list of elastomer guideline, KTW guideline or coating guideline.

Quality assurance for energy and water supply. This is very important ww270 the hygienic- microbiological point of view. As a major manufacturer of valves we are present all over the world. This website uses cookies. For the disclosure of the recipe a confidentiality agreement can be signed. Gas and Energy Transition Integrated Energy.