Testing to standard – for your products too
Test centre
Get to know the Cleff test centre. Simply make an appointment and tell us your individual test requirements. Together with you we raise the quality of the products and make them not only compliant but future-proof.
Tests
- Pressure cycling based on UIC 566 section 4.2.2.2
- Air tightness testing of doors based on DIN EN 14752
- Water tightness testing of doors based on DIN EN 14752
- Resistance to wind load to DIN EN 12211:2016
- Air permeability to or based on DIN EN 1026:2016
- Watertightness under driving rain to or based on DIN EN 1027:2016
- Endurance testing to or based on DIN EN 1191:2012
- Smoke control testing to DIN EN 1634-3:2009
- Soft body impact test to e.g. NF F01-492 and NF P08-301
- Calculation of sound reduction of windows and doors to e.g. ASTM E2611-17
- Measurement of sound insulation of windows and doors to DIN EN ISO 10140
- Static strength and fatigue strength verification to DIN EN 12633-1
- Fatigue strength verification for vibration loads to DIN EN 61373
The test centre
Vehicle windows and doors must meet high requirements: wind loads, thermal sealing, tightness against driving rain, endurance over the entire vehicle life and safety in the passenger compartment. Our test centre performs the required quality tests to DIN and EN standards – for our own products as well as a service for yours.
You receive reliable, documented and traceable results – and a partner who can derive the design improvement directly from the test result.
Overview
Six test disciplines under one roof
Every assembly is tested as a finished component, not as a model. The test rigs are in Wuppertal and the results go into the release documentation.
- 01Pressure cyclingUIC 566
Tunnel entry and train crossings create short pressure pulses. The rig reproduces them repeatably.
- 02Air and water tightnessDIN EN 14752
Driving rain and positive pressure outside, leakage measured on the inside.
- 03Wind loadDIN EN 12211
Deflection under wind pressure up to the required load step, measured at several points of the pane.
- 04EnduranceDIN EN 1191
Opening and closing over many thousand cycles, followed by a repeat tightness test.
- 05Acoustic insulationDIN EN ISO 10140
Weighted sound reduction index of the glazing, decisive for the interior noise level.
- 06Vibration resistanceDIN EN 61373
Vibration and shock in service, applied in all three axes.
Overview
What the test centre tests
Windows and doors are not only manufactured but tested on the finished component – in our own test centre in Wuppertal, on request also for components from other manufacturers.
| Test | Standard | What it covers |
|---|---|---|
| Pressure cycling | UIC 566 | Load from tunnel entry and passing trains |
| Air and water tightness | DIN EN 14752 | Tightness in service and in driving rain |
| Wind load | DIN EN 12211 | Deformation under wind pressure |
| Endurance | DIN EN 1191 | Behaviour after many opening cycles |
| Sound insulation | DIN EN ISO 10140 | Interior noise level |
| Vibration resistance | DIN EN 61373 | Vibration in service |
Frequently asked questions
FAQ: test centre
Can I have products from other manufacturers tested at Cleff?
Yes. The test centre is also available for customer products. Make an appointment and tell us your individual test requirements.
Which standards does the test centre cover?
Among others UIC 566 (pressure cycling), DIN EN 14752 (air/water tightness of doors), DIN EN 12211, DIN EN 1026, DIN EN 1027, DIN EN 1191 (endurance), DIN EN 1634-3 (smoke control), NF F01-492 / NF P08-301 (soft body impact), ASTM E2611-17 and DIN EN ISO 10140 (acoustics), DIN EN 12633-1 (strength) and DIN EN 61373 (vibration).
Test rigs
We test the finished component, not a model.
Pressure cycling, driving rain, wind load, endurance, acoustic insulation and vibration resistance – in our own test centre in Wuppertal, and on request for other manufacturers' components too.