Approvals

We strive to provide our customers with all top of the line products. When it comes to approvals we always try to comply with current standards for our products in our line of business. The F-liner we use has received an approval from DIBT (German Civil Engineering Institute).

​DIBT license number: Z-42.3-528

Download the approval here.

 

Before getting an approval from DIBT a wide range of tests had been cleared according to the following standards.

Control of cured liner

  • ​Property or resin through testing of viscosity ac. to DIN EN ISO 3219, density ac. to DIN 51757, bending properties ac. to DIN EN ISO 178, pulling properties ac. to DIN EN ISO 572-2, thermo-stability ac. to DIN EN ISO 75-2 A.
  • ​Liner-carrier through testing of area density an wall-thickness ac. to DIN EN ISO 9864 / DIN EN ISO 9863-1 and FT-IR spectroscopy ac. to ASTM D 5576.

Control of raw materials

  • ​Leak-tide-testing of laminate ac. to DIN EN 1610.
  • ​Wall thickness and regular structure.
  • ​Content of resin ac. to DIN EN ISO 1172.
  • ​Water uptake ac. to DIN EN ISO 62.
  • ​Specific weight ac. to DIN EN ISO 1183-1.
  • ​Short-time ring-stiffness and E-module ac. to DIN EN 1228.
  • ​Long-term apex-pressure test to measure reduction factor A1 ac. to DIN EN 761 (control of long-term stand-alone properties after 10.000 hours laboratory simulating 50-years real usage).
  • ​Short-term E-module ac. to DIN EN ISO 178 in combination with DIN EN ISO 11296-4.
  • ​Creep-affinity after 24 hours ac. to DIN EN ISO 899-2.
  • ​Mechanical properties ac. to dynamical-mechanical-analysis (DMA).
  • ​Abrasion ac. to DIN EN 295-3 (Darmstädter Kipprinne) and high-pressure-cleaning test ac. to DIN 19523.
  • ​Resistance to chemical impact of sewage water ac. to DIN 1986-3 and DIN EN ISO 175. After 28 days of chemical Impact tests were performed to measure change of mass ac. to DIN EN ISO 175, structural properties ac. to DIN EN ISO 527-4 and impact resistance ac. to DIN EN ISO 179-1.
  • ​Compressive strength ac. to DIN EN ISO 604.
  • ​Stretch ability of coating ac. to DIN EN ISO 527-1.​

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