- Temperature rise profile
- Maximum surface temperature
- Material deformation or distortion data
- Discoloration or surface degradation analysis
- Thermal performance evaluation
- Test report as per DIN 75220
- Compliance and quality documentation
- Design improvement recommendations
DIN 75220 Solar Simulation Testing for Automotive Components
The DIN 75220 standard is used to determine the aging behavior of polymer vehicle components. It is especially suitable for displaying the interactions of various materials within a component or between various components because it applies to complex assemblies or whole tools.
TRUSTED BY
- Overview
- Scope, Applications, and Benefits
- Test Process
- Specifications
- Instrumentation
- Results and Deliverables
DIN 75220 Solar Simulation Test – Overview
DIN 75220 solar simulation testing evaluates the behavior of automotive components under simulated solar radiation and elevated temperature conditions. It replicates real-world sunlight exposure to assess thermal loading, material degradation, and performance stability.
This test is essential for interior and exterior automotive components exposed to sunlight. It helps manufacturers understand temperature rise, material aging, and durability, ensuring safety, comfort, and long-term performance under harsh environmental conditions.
Scope, Applications, and Benefits
Scope
DIN 75220 defines a controlled method to simulate solar radiation using artificial light sources to evaluate thermal effects on automotive components. It measures temperature rise and material response under defined irradiation conditions.
The method supports validation of component performance under solar loading environments.
- Measurement of temperature increase under simulated solar radiation
- Evaluation of material thermal stability and aging behavior
- Assessment of component performance under heat load
- Analysis of deformation, discoloration, or degradation
- Comparison of materials and design configurations
- Standardized automotive environmental testing
Applications
- Automotive interior component testing (dashboards, trims)
- Exterior parts exposed to sunlight
- HVAC system performance evaluation
- Seat and upholstery material testing
- Plastic and polymer component validation
- Automotive design and development
- Quality control and durability assessment
Benefits
Evaluates sunlight resistance of materials
Helps improve durability of interior components
Supports automotive material qualification
Reduces risk of color fading and deformation
Ensures long-term interior performance
DIN 75220 Solar Simulation Test – Test Process
Specimen Preparation
Material samples are prepared according to specified size and conditioning requirements.
1Solar Simulation Setup
Samples are placed inside the solar simulation chamber equipped with a high-intensity light source.
2Exposure to Simulated Sunlight
The specimen is exposed to controlled light intensity and temperature conditions that simulate sunlight inside a vehicle.
3Evaluation and Inspection
After exposure, samples are inspected for color changes, surface damage, or material degradation.
4DIN 75220 Solar Simulation Test – Technical Specification
| Parameter | Details |
|---|---|
| Test Type | Solar radiation aging test |
| Light Source | Xenon arc or solar simulation lamp |
| Exposure Environment | Controlled temperature and radiation |
| Applicable Materials | Automotive interior materials |
| Measured Parameters | Color change, surface degradation, material stability |
| Test Duration | Defined exposure cycles depending on requirement |
Instrumentation Used for Testing
- Solar simulation test chamber
- Xenon arc lamp or solar simulator
- Temperature sensors (thermocouples, IR sensors)
- Radiometer for irradiance measurement
- Data acquisition system
- Environmental control system (temperature and humidity)
- Mounting fixtures for components
- Airflow control system
Results and Deliverables
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Frequently Asked Questions
DIN 75220 evaluates the aging behavior of automotive interior materials when exposed to simulated solar radiation, heat, and environmental conditions to assess durability, discoloration, deformation, and material performance over time.
This testing helps manufacturers predict how interior materials will perform under prolonged sunlight exposure, ensuring components maintain appearance, mechanical stability, and safety during real-world vehicle operation.
Solar simulators reproduce the spectral distribution and intensity of sunlight using xenon arc lamps, enabling controlled exposure that mimics real environmental conditions while ensuring repeatability and consistency in laboratory testing.
Temperature rise directly impacts material stability, passenger comfort, and component performance, especially in enclosed vehicle cabins where solar heating can significantly elevate interior temperatures.
The test uses artificial global solar radiation with a spectral distribution similar to natural sunlight, generated inside a solar simulation chamber under controlled laboratory conditions.
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