Production and Final Product Tests
MECHANICAL TESTS- Yield strength (Re)
- Tensile strength (Rm)
- Elongation at break (%A)
- Bending
Standard: EN ISO 6892-1
WELDING INSPECTIONS- Visual Inspection (VT)
- Radiographic Inspection (X-Ray)
- Macroscopic Examination
Standards: EN ISO 5817, EN ISO 17636, EN ISO 10675, EN ISO 17639
PRESSURE AND STRENGTH TESTS- Hydrostatic test pressure: 30 bar
- Burst pressure ≥ 67,5 bar
- Expansion ≥%20 (Cylinder)
- Expansion ≥%8 (Toroidal)
Standard: ECE R67
FATIGUE TEST- Filling and emptying cycles are simulated
Standard: EN 14140
FIRE (BONFIRE) TEST- Tanks filled to 80% are tested under open flame. It is verified that PRV and PRD safety devices ensure controlled gas release and that no explosion occurs.
Standard: ECE R67
SALT SPRAY TEST- Duration: 240 – 720 hours
Standard:ISO 9227