The correct use and application of a multitude of different materials is a determining factor in construction project quality. The quality of construction products is usually deemed self-evident, but you can also demonstrate this through a product certificate. To support the certification process, Kiwa can perform a wide range of tests for you in one of our (internationally accredited) state-of-the-art laboratories. Additionally, the correct fitting, assembly and use of construction materials are decisive in achieving the required level of building quality, for which a process certificate offers quality assurance. Kiwa has extensive expertise in the area of independently monitoring the quality and use of building materials such as timber, concrete, steel, glass, roofing, cladding, insulation, plastics, asphalt and ceramic products. We are also a designated Notified Body for a large number of construction products and we can assist you in correctly interpreting the increasingly complex local and European construction regulations (including, for example, CE marking).
Services
-
Sealing materials for metallic threaded joints. Part 3: Unsintered PTFE AR 31-3Show
-
Bendable hose assemblies AR 1Show
-
Polyethylene (PE) valves for plastic piping systems for the supply of gaseous fuels AR 136Show
-
External coatings for the corrosion protection of buried or immersed pipelines and joints AR 87Show
-
Elastomeric seals EN 681-1 | Testing, inspectionsShow
-
Plastic corrugated protection pipe AR 211Show
-
Maximum flow rate safety valves AR 191Show
-
Rubber engineering products | Testing-inspections-service lifeShow
-
Rubber products and materials | Physical-mechanical-chemical testingShow
-
Rubber stress relaxation test | ISO 3384 | ISO 6914Show
-
Rubber hose with reinforcements AR 43Show
-
Thermally-responsive safety valves AR 171Show
-
Transition fitting for flexible and bendable hose assemblies AR 213Show
-
Saddles with clamp connection of modified poly(vinyl chloride) (PVC-HI) AR 58Show
-
Self-closing gas valves AR 168Show
-
With the Safety Culture Ladder (SCL), formerly known as the Veiligheidsladder, you can measure the safety awareness within your organisation and thereby improve the safety culture. Creating an intrinsic change in attitude and behaviour is central to this.Show
-
The valves are meant as a device to prevent backflow. Check valves with a nominal diameter smaller then or equal 50 mm are intended for application in drinking water installations with a maximum constant temperature of 65°C and a with a maximum of one hour with a water temperature of 90° C.Show
-
Use the Kiwa Water Mark as a producer or supplier. If you want to market yourself with products that meet all requirements; both functional as well as all legal hygienic requirements specified in the “Materials and chemicals in the supply of drinking water and warm tap water Regulation” by the Dutch government.Show
-
The products are intended to be used for the transport of drinking water and a working pressure of 1MPa (1,000 kPa), with a water temperature up to 65˚C and a maximum water temperature up to 90˚C for a period of maximum 1 hour.Show
-
In the bitumen industry, the BDA Bending Tester® is generally accepted as an essential test to determine the quality of modified bitumen.Show