Plastics-Piping Systems Inside Buildings

Kiwa Watermark Certification and Testing for Plastics Piping Systems Inside Buildings

Water for drinking, cooking, preparing food or other household purposes comes to us through a pipe system that must be reliable and safe for our health. Kiwa Watermark certification and testing guarantees high quality plastics piping systems inside buildings.

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Who is Kiwa Watermark certification and testing for? 

Certification and testing for plastics piping systems inside buildings is relevant for installers/ plumbers, architects, contractors, and anyone working for municipalities and housing association responsible for drinking water quality. 


About Kiwa Watermark product certification and testing 

Kiwa Watermark quality mark certified plastics piping systems inside buildings guarantee compliance with the requirements of Dutch and international standards for products used for drinking water distribution. In addition, the products meet the hygienic requirements, as set by the Dutch government. Only products that meet all requirements - including an agreed constant quality level - can be certified by Kiwa with the Kiwa Watermark. The guaranteed lifetime of the Kiwa Watermark certified pipes and fittings used inside buildings for transport of drinking water is at least 50 years.  


Kiwa Watermark certification evaluation guidelines 

Plastics piping systems of PVC-C for hot and cold drinking water (BRL-K536 A)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-A applies to products intended to be applied in piping systems for hot and cold-water distribution at a design pressure (= maximum operating pressure) of 8 or 10 bar (9 or 11 bar absolute or 8 or 10 bar overpressure).

The evaluation guideline BRL K536-A is a certification scheme for the Kiwa (technical approval-with) product certificate for plastics piping systems of PVC-C (type 1) intended for transport of hot and cold drinking water.

Download BRL K536-A Evaluation Guideline

Plastic piping systems of PP-R for hot and cold drinking water (BRL-K536 B)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-B applies to products intended to be applied in piping systems for hot and cold-water distribution at a design pressure (= maximum operating pressure) of 8 or 10 bar (9 or 11 bar absolute or 8 or 10 bar overpressure).

The evaluation guideline BRL K536-B is a certification scheme for the Kiwa (technical approval-with-) product certificate for plastics piping systems of PP-R intended for transport of hot and cold drinking water.

Download BRL K536-B Evaluation Guideline

Plastic Piping Systems of PB for hot and cold drinking water (BRL-K536 C)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-C applies to piping systems distribution systems for hot and cold drinking water at a design (working) overpressure of 8 or 10 bar.

The evaluation guideline BRL K536-C is a certification scheme for the Kiwa (technical approval-with) product certificate for plastics piping systems of PB intended for transport of hot and cold drinking water.

Download BRL K536-C Evaluation Guideline

Plastic piping systems of PE-X for hot and cold drinking water (BRL-K536 D)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-D applies to products intended to be applied in piping systems distribution systems for hot and cold drinking water at a design (working) over-pressure of 8 or 10 bar.

The evaluation guideline BRL K536-D is a certification scheme for the Kiwa (technical approval-with) product certificate for plastics piping systems of PE-X intended for transport of hot and cold drinking water.

Download BRL K536-D Evaluation Guideline

Plastic piping systems of PE-X/Al for hot and cold drinking water (BRL-K536 E)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-E applies to products intended to be applied in piping systems for hot and cold-water distribution at a design pressure (= maximum operating pressure) of 8 or 10 bar (9 or 11 bar absolute or 8 or 10 bar overpressure).

The evaluation guideline BRL K536-E is a certification scheme for the Kiwa (technical approval-with) product certificate for plastics piping systems of PE-X /Al intended for transport of hot and cold drinking water.

Download BRL K536-E Evaluation Guideline

Plastic piping systems of PP-R/Al for hot and cold drinking water (BRL-K536 F)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-F applies to products intended to be applied in piping systems for hot and cold water distribution at a design pressure (= maximum operating pressure) of 8 or 10 bar (9 or 11 bar absolute or 8 or 10 bar over pressure.

The evaluation guideline BRL K536-F is a certification scheme for the Kiwa (technical approval-with-)product certificate for plastics piping systems of PP-R /Al intended for transport of hot and cold drinking water.

Download BRL K536-F Evaluation Guideline

Plastic piping systems of PE-RT/Al for hot and cold drinking water (BRL-K536 G)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-G applies to products in piping systems for hot and cold-water distribution at a design pressure (= maximum operating pressure) of 8 or 10 bar (9 or 11 bar absolute or 8 or 10 bar over pressure.

The evaluation guideline BRL K536-G is a certification scheme for the Kiwa (technical approval-with-) product certificate for plastics piping systems of PE-RT /Al intended for transport of hot and cold drinking water.

Download BRL K536-G Evaluation Guideline

Plastic piping systems of PE-RT Type II for hot and cold drinking water (BRL K536 H)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-H applies to  products are intended to be applied in piping systems for hot and cold-water distribution at a design pressure (= maximum operating pressure) of 8 or 10 bar (9 or 11 bar absolute or 8 or 10 bar over pressure.

The evaluation guideline BRL K536-H is a certification scheme for the Kiwa (technical approval-with-) product certificate for plastics piping systems of PE-RT Type II intended for transport of hot and cold drinking water.

Download BRL K536-H Evaluation Guideline

Multilayer piping systems PE-X/Al, PE-RT/Al, PP-R/Al and PP-RCT/Al for drinking water (BRL-K536 K)

Kiwa Watermark certification under Kiwa evaluation guideline BRL K536-K applies to products belonging to multilayer piping systems of PE-X/Al, PE-RT/Al, PP-R/Al and PP-RCT/Al which is intended to be used for hot and cold drinking water installation inside building at a design pressure of 8 or 10 bar (maximum operating pressure).

The evaluation guideline BRL K536-K is a certification scheme for the Kiwa Technical approval with product certificate for multilayer piping systems PE-X/Al, PE-RT/Al, PP-R/Al and PP-RCT/AI, intended for transport of hot and cold drinking water inside buildings.

Download BRL K536-K Evaluation Guideline

Inside building similar certification evaluation guidelines has been developed with DVGW, for more see:

General Rules for Product Certification
Product Evaluation Guideline

Contact our certification experts in this area to study your question and work with you to find the right solution to obtain the Kiwa Watermark quality mark.

Kiwa Watermark certification process

Kiwa Watermark certification process

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About Kiwa Watermark by Kiwa

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