Building materials

The BDA Folding Device, type H, is the test device for determination of the resistance to folding of plastic and rubber sheets according to EN 495-5:2013 – Flexible sheets for waterproofing – Determination of foldability at low temperature - Plast...

Kiwa product certificate for internally tinned copper tubes for drinking water installations.

Insulation union couplings in gas conduits AR 137

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.

Based on the Evaluation Guideline for Temporary Drinking Water Installations (BRL-K14036) Kiwa issues certificates to installers who design, construct, operate and manage temporary drinking water installations. Subsequently certified installers ma...

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.

The Polyurethane coatings are intended to be applied as an external protection on under­ground ductile iron pipes. Coatings complying with this Guideline can be used for a continuous operating temperature of upto 40 °C in soils of any corrosivenes...

Kiwa certifies materials and finishes used in the manufacturing of food equipment. The certification scheme is based on the standard NSF/ANSI 51.

This approval requirement describes the requirements with regard to flexible hose assemblies for use in installations for natural gas with a pressure of no more than 200 mbar in accordance with the NPR 3378-11 Code of Practice

For the construction products for which a harmonized European standard is available the CE marking is mandatory when you want to place them on the European internal market. For the other construction products there is the possibility of applying a...

The Automatic shut-off (mixing)valves are intended for application in drinking water installations with a static water pressure of maximum 1000 kPa and a maximum water temperature of 90°C. The recommended limits for correct operation are a dynamic...

Kiwa makes quality visible As a supplier, buyer, inspector and consumer you need and want confidence. Confidence in the quality of materials and products used in (drinking) water installations and in its manufacturing. Kiwa will make the quality o...

Rubber engineering products | Testing-inspections-service life

Confidence is what suppliers, buyers, inspectors and consumers need and want. Confidence in the quality of the materials utilized, the performance of the products and the quality control on a day-to-day basis of the manufacturer can all be highlig...

Kiwa Expert Centre Polymers is your partner for reliablity engineering of plastic and rubber products. The realisation of reliable polymer and rubber products starts in the design or engineering stage. There the fundamental choices are made that have a major influence on the functioning of the product in the end.

Determination of the wather-tightness of solar energy systems in roofs.

Welding is a special manufacturing process which is used in sectors to reveal structures which cannot be manufactured as one piece. The EN ISO 3834 series standards are also standards that define all Quality requirements for the operation of this particular process.

Within the Kiwa organisation there are a large number of accredited laboratories. This means that the scope of possible tests within the entire Kiwa Group is so wide that is impossible to mention them all here. Although not limited to polymer test...

The products are intended to be applied as sanitary appliances giving a nominal flushing volume of 6, 7 or 9 litres. These appliances are intended for connection to drinking water installations with a maximum water temperature of 30° C and a maxim...

The quality of our drinking water is a matter that concerns us all. To prevent the pollution of drinking water it is essential for appliances (such as washing machines and dishwaters) to have internal backflow protection. With the Kiwa Domestic Wa...