Kiwa UNI Testing and Certification
The KIWA-UNI mark certifies the conformity of plastic and metal components in contact with water and gas to national and international standards.

Kiwa provides a wide range of services for manufacturers and service providers in the utilities sector - in particular, the gas and drinking water sectors. We are experts in the natural gas sector, ranging from gas measurements, biogas and hydrogen appliances to grid development. We support you in making the change from fossil to solar and wind energy, and in implementing and maintaining technologically advanced materials, appliances and systems for energy and water transportation and use. At the same time, we help you meet regulations and legislation concerning quality, health, safety and the environment.