Certified permeation resistance
KIWA is the institute that tests and issues certificates for impermeable barriers in polyethylene pipe systems.
The pipes are divided into two classes:
Class II For laying in ground where limited contaminants may occur that are higher than the limit values.
Class III For laying in ground where larger volumes of contaminants may be present.
3L Leak Control is tested and certified according to the highest Class III.
For more information, download the PDF (1.6 MB) > (Evaluation Guideline BRL K-17101 2017-12-12 for the KIWA technical approval with product certificate for class II and class III polyethylene piping systems with an aluminium barrier layer for the transport of drinking water in polluted soil).