
DVGW Testing and Inspection
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Who is DVGW testing and certification for?
DVGW standards provide a foundation for everyone working in the gas and water sectors in Germany.
About DVGW testing and inspection
As recognized laboratory by the German Association of Gas and Water Professionals, Kiwa provides testing and inspections services for water and gas materials, components and products in accordance with various DVGW evaluation guidelines like
- W534
- W542
- W543
- W544
- W574
- ZP8500
- GW335 (A1, A2, A3, B2 and more)
- Other related DIN, EN and ISO product standards.
Kiwa's qualified technicians and auditors will validate the specifications of your products and assess the quality controls during the production process in preparation for the final review and granting of the certificate by DVGW.
One-stop shop
Besides DVGW approvals for Germany, our broad service portfolio covers water and gas approvals for other countries like Netherlands, Sweden, Finland, Italy, Great Britain, United States, and the Middle East.
Our scope enables us to effectively combine and tailor testing, evaluation and certification services for manufacturers to help reduce the time and costs from application to certificate. Would you like to know more about how we can help optimization your certification portfolio? Then please contact us.
Benefits Kiwa DVGW testing and certification services
- Kiwa is well respected in the water industry, a symbol of quality and integrity.
- Our services encompass all areas of the water and wastewater supply networks.
- We provide a responsive and personalized guidance through the certification process.
- Proven record of combining approvals to keep costs down and improve market on time.
- Extensive international network that supports approvals and access to new markets.
- The use of the Kiwa quality mark on your products and promotional materials.
Kiwa Watermark Certification, Testing and Inspection
Tests and Kiwa Watermark certification guarantee compliance with the requirements of Dutch standards for products in contact with drinking water used in industrial and domestic drinking water installations.

NSF/ANSI/CAN 61 Product Certificate for Drinking Water System Components
Nearly all U.S. states and Canadian provinces/territories require that components of drinking water distribution systems comply with and/or be certified to the NSF/ANSI/CAN 61 standard. This standard sets minimum criteria for evaluating the health effects of materials, components, products and systems that come into contact with drinking water.
