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Are you a contractor, architect, installer or plumber. Or do you work for a municipality or housing association and are involved in installing a plastic piping system of PB intended for underfloor heating? Is your system not yet certified? Then Kiwa can help you further. Our certification experts in this area will study your question and will work with you to find the right solution to obtain the KOMO quality mark in accordance with the Kiwa assessment guideline.

Your own Kiwa quality mark 

The assessment guideline BRL5604 is a certification scheme for plastics piping systems of PB intended for underfloor heating at a design (working) overpressure of 4 or 6 bar according the temperature profile class 4 in table 1. You will not receive the certificate just like that. We place high demands on the entry control of the raw materials, controls during the production process and on the end product. When requesting a quote, you indicate for which products and which technical area you want to be certified. For this assessment guideline it is: F2 piping systems.

Table 1 – Temperature profile during 50 years

Temperature [ ºC]TimeOverall service coëfficiënt
Tcold202,5 years1,25
Tdesign40+6020 years+25 years1,5
Tmax702,5 years1,3
T malfunction100100 hours1,0
Remark: the mentioned temperature profile is in accordance with class 4 of ISO 10508.

Procedure obtaining KOMO product certificate

If you have agreed to our quotation, we will conduct an admission investigation. We are investigating whether you can obtain the KOMO product certificate in accordance with the requirements we have determined. We do this by means of a company audit and prescribed laboratory tests. The outcome of this determines whether you meet the requirements of BRL5604. If the result is positive, you will receive a KOMO certificate. The quality system - as laid down in the IKB - is then regularly checked by us. In this way your product continues to meet the set requirements. Your customers can be confident that your product offers them what they consider important; quality.

About Kiwa

Kiwa has specialized business units that focus on specific market segments, in the Netherlands and internationally. We offer specialist services in areas such as energy and water, fire safety and security, infrastructure, roof and facade advice, sports facilities and training. You can contact these business units for testing, inspection, certification, training and consultancy tailored to your market segment.