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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Vocational Training and Qualifications.
Testing and Certification
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. Under certain conditions, a prolongation for further five years is possible. Gas and Energy Transition. 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.
Information and Know-How Transfer. The recipe means the detailed chemical composition of the material from which the product is made. 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. The certificate automatically becomes invalid if the requirements, even for the composition, change, or if the recipe or production is modified. For the disclosure of the recipe a confidentiality agreement can be signed. Testing and Certification Ensuring safety, hygiene and quality standards.
Service Portfolio Testing and Certification. ERHARD is one of the most important manufacturers of water valves in the world with experience dating back over years Technical innovations can only be beneficial if they actually work in practice. Standardisation List of English Standards. Search Contact Heiko Delong Tel.: Gas and Energy Transition Integrated Energy.
The recipe must, dependent dvge the type of material, be in accordance with the dvgq positive list of elastomer guideline, KTW guideline or coating guideline. For disclosure of recipe all the substances and additives have to be identified. Our subsidiaries do not just focus on sales activities but also on service, repair and spare parts supply Together with test laboratories, the company certifies and monitors gas and water industry products, quality and environmental management systems to DIN EN ISO ff.
The validity of a W test certificate is based on elsewhere dvgq regulations but ends 5 years after date of issue. Safety and Quality Management. 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 their field e270 activities.
Impartiality, quality and reliability are the top priorities in certification work. Nitrates and Drinking Water.
This approach ensures that the individual procedures are tailored to the needs of the gas and water industries and are tightly meshed. Thus it is a material test and only for multilayer systems such as composite pipes the test is carried out on the product.
Safety and Security Technical Safety Gas. The test starts with the full disclosure of the recipe.
This list must include the chemical name of the chemical compound, including the CAS-No. Quality assurance for energy and water supply.
Marking of water meter body housings acc. to DVGW Worksheet W
DVGW standard W describes a method for the assessment of enhancement of microbial growth on non-metallic materials in contact with drinking water. Water treatment Water transmission Water distribution network House connection Dams and hydropower Irrigation Fire protection network Industrial water applications Sewage and treatment.
The services are tailor-made to meet the requirements of the industry and to ensure efficient meshing of the various processes.
List of English Standards. As a major manufacturer of valves we are present all over the world. 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.