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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With a DVGW CERT certificate, product manufacturers, specialist companies, utilities and experts can demonstrate to their customers and market partners that they comply with the state of the art in e270 field of activities. Search Contact Heiko Delong Tel.: List of English Standards.

DVGW – Innovation and setting standards in the gas and water sectors

This list must include the chemical name of the chemical compound, including the CAS-No. Quality assurance for energy and water supply. Documents ready for download – click here! As a major manufacturer of valves we are present all over the world. Materials which are used in the dvg water sector, must have a surface which excludes an unwanted surface fouling by microorganism.

Standardisation List of English Standards.

This approach ensures that the individual procedures are tailored to the needs of the gas and water industries dvvgw are tightly meshed. Our subsidiaries do not just focus on sales activities but also on service, repair and spare parts supply If you continue to use the website, you agree to the use of cookies. Information and Know-How Transfer.


Water treatment Water dvg Water distribution network House connection Dams and hydropower Irrigation Fire protection network Industrial water applications Sewage and treatment. 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.

This is very important for the hygienic- microbiological point of view.

Gas and Energy Transition. Nitrates and Drinking Water.

For disclosure of cvgw all the substances and additives have to be identified. In addition it cooperates with more w720 40 DVGW-recognized testing laboratories in the field of gas technology, electrical engineering, mechanical engineering, material testing, plastics, drinking water and hygiene.

Gas and Energy Transition Integrated Energy. Impartiality, quality and reliability are the top priorities in certification work. DVGW standard W describes a method for the assessment of enhancement of microbial growth on non-metallic materials in contact with drinking water.

Efficient Use of Gas. Technical innovations can only be beneficial if they actually work in practice. It is necessary that in addition to various technical and mechanical requirement also be guaranteed the hygienic.

Marking of water meter body housings acc. to DVGW Worksheet W421

cvgw Vocational Training and Qualifications. This website uses cookies. ERHARD is one of the most important manufacturers of water valves in the world with experience dating back over years The certificate automatically becomes invalid if the requirements, even for the composition, change, or if the recipe or production is modified.


Service Portfolio Testing and Certification. The validity of a W test certificate is based on elsewhere specified regulations but ends 5 years after date of issue. Thus it is a material test and only for multilayer systems such as composite pipes the test is carried out on the product.

DVGW-Testing Laboratory

For the disclosure of the recipe a confidentiality agreement can be dgw. Safety and Security Technical Cvgw 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 services are tailor-made to meet the requirements of the industry and to ensure efficient meshing of the various processes.

Imprint Terms Print Sitemap. 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. The recipe must, dependent on the type of material, be in accordance with the actual s270 list of elastomer guideline, KTW guideline or coating guideline. Together with test laboratories, the company certifies and monitors gas and water industry products, quality and environmental management systems to DIN EN ISO ff.

Under certain conditions, a prolongation for further five years is possible. Safety and Quality Management. The test starts with the full disclosure of the recipe.