Products controlling and testing is done in our own production workshop and our own laboratory.
What is tested is the dimensions and properties according to the prescribed standards, such as:
| Dimensions | BS EN 14 364, ISO 2531 |
| Stiffness | EN 1228 |
| Initial ring deflection | EN 1226 |
| Hardness | ASTM D 2583 |
| Initial longitudinal tensile properties | EN 1393, BS EN 14 364 |
| Circumferential tensile strength | EN 1394, BS EN 14 364 |
| Determination of flexural properties | EN ISO 178 |
| Determination of tensile properties | EN ISO 527 |
| Hydrostatic pressure test | AWWA C 950 |
| Determination of glass and mineral fillers content | EN ISO 1172 |
| Sealing of the joints | EN 1119 |
Together with the already mentioned characteristics, with the accredited institutes and laboratories, such as INSTITUT IGH d.d. – Croatian Public Health Institute; ZAG- Slovenian National Building and Civil Engineering Institute; Mepa Institute Leipzig, Germany; Institute for testing of materials - IMS Institute, Serbia; Institute of Public Health of Serbia, as well as many others, the following characteristics of our products are tested:
| Long-term ultimate bending strain and long-term ultimate ring deflection | ISO 10471, BS EN 14364 |
| Long-term specific ring creep stiffness and wet creep factor | ISO 10468, BS EN 14364 |
| Long-term resistance to internal pressure | EN 1447, BS EN 14364 |
| Health suitability for diverse applications | Službeni listovi |
| Inflammability test | DIN 4102 klasa B2 |
The only true evaluation of quality is the satisfaction of our buyers!
