The manufactured pipes and pipe fittings are fully compliant with the increasing expectations. What is more, they regularly undergo internal quality control tests and tests in the Główny Instytut Górnictwa [Central Mining Institute] in Katowice.

TECHNICAL APPROVAL – PVC-U pipes for internal storm water drainage and for ventilation of sanitary sewage.
Technical approval no AT-15-8143/2009 from dn. 07.09.2009.

TEST PROTOCOL – 'Tests of PVC-U pipes for internal storm water drainage and for ventilation of sanitary sewage.
Test protocol no 38/07/SM1

TEST PROTOCOL – 'Tests of the compliance of internal and external sewage systems with the appropriate norms'
Test protocol no 158/05/SM1

TEST PROTOCOL – 'Tests of PVC seals for sewage pipes and pipe fittings'
Test protocol no 139/04/SM1 . Central Mining Institute
Zakład Inżynierii Materiałowej [Material Engineering Unit]. Accreditation Certificate No AB072 in PCA.