Solar radiation test
Solar radiation, including UV exposure, can significantly affect the quality and longevity of materials, causing issues such as discoloration, brittleness, and loss of elasticity. Solar Radiation Tests evaluate the impact of sunlight on equipment or components, ensuring durability and performance in real-world conditions.
At The Sebert Group, we offer advanced solar radiation testing based on IEC 60068-2-5 (Procedure C). This method provides valuable insights within just three days of UV simulation, equivalent to one year of real-world exposure.
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→ Overview tests
→ Specifications testing machines
→ Standards
→ Reasons for testing
→ Accelerated testing
Solar radiation test
The sunlight spectrum consists of electromagnetic wavelengths that reach the Earth's surface. It can be divided into three main components:
280-400 nm
- 6.1% of total solar energy at sea level (~68 W/m²).
- Subcategories:
- UVA (315-400 nm): Causes material aging and degradation over time.
- UVB (280-315 nm): Affects physical and chemical properties, causing gradual material breakdown.
- UVC (100-280 nm): Fully absorbed by the atmosphere and does not reach Earth.
400-800 nm
- 51.8% of total energy (~580 W/m²).
- Responsible for the visible color spectrum humans perceive.
800 nm and above
- 42.1% of total energy (~472 W/m²).
- The primary contributor to heat felt from sunlight.
Standards
Specifically focused on exposure to sunlight radiation (including UV radiation)
Purpose of the standard
The purpose of this standard is to simulate the effects of sunlight, particularly the ultraviolet and visible portions of the spectrum. This is crucial for products that are used outdoors for extended periods or exposed to intense sunlight.
Test method
- Spectrum: The test uses simulated sunlight (e.g., xenon arc lamps) to replicate the UV and visible light spectrum of sunlight.
- Duration: Test duration and intensity are based on the specifications of the product being tested and its expected exposure in use.
- Temperature and humidity: These parameters can be controlled and adjusted to create realistic conditions.
Applications
- Electronic devices
- Plastics, coatings, and paints
- Solar panels
- Outdoor applications such as traffic signs, vehicle components, and construction materials
Exposure Testing
The standard specifies how a product should be exposed to simulated sunlight to test its resistance to:
- Discoloration
- Material degradation
- Cracking or breakage
- Functional deterioration
Test UV and Solar Radiation
Test UV and solar radiation effects on your products with our Solar Radiation Test. Reliable, fast and according to IEC standards. The UV tests can be combined with water tests, which simulate the combined weather influences of sun and rain.
Specifications of test equipment in our facility
Our Sun tester measures and monitors radiation between 300 nm and 800 nm (UV + visible light) during a solar radiation test. The maximum radiation intensity in the unit is 765 Watts/m² (UV + visible light), which is 18% higher than the maximum sunlight at sea level at noon on the hottest day of summer (without clouds or air pollution). For outdoor sunlight simulation, the most representative test methods recommend a value of 550 Watts/m². For simulations behind glass, special filters are used that allow UV radiation above 320 nm to pass.
Specifications:
- Test area dimensions: 200 x 300 mm
- Temperature range: 25°C to 60°C
- Maximum radiation: 765 Watts/m² (300 - 800 nm)
- Note: Combined testing of UV + visible light and water is possible
Accelerated testing insights
Our SUNTEST equipment measures and controls radiation across 300-800 nm (UV + visible light) with a maximum intensity of 765 W/m², which is 18% higher than peak sunlight at sea level during noon.
- Extreme conditions: High UV exposure, heat, and dryness.
- Higher temperatures: Greater than those in Florida.
- Minimal pollution: Reduced industrial and urban contaminants.
- Proven track record: Known for automotive interior material testing, with extensive historical data.
Accelerated aging comparisons:
- 1 year in Arizona (normal conditions) = 2909 hours/year at 550 W/m².
- 1 year in Arizona (extreme conditions) = 2091 hours/year at 765 W/m².
- 1 year in Europe (normal accelerated aging) = 1,035 hours per year at 550 Watts/m²
- 1 year in Europe (extreme accelerated aging) = 744 hours per year at 765 Watts/m²
4 reasons perform solar radiation tests
Gain valuable insights into your product's performance under sunlight exposure in just 10 days, saving time and costs compared to long-term field testing.
Simulate the combined effects of sunlight and rain for a comprehensive evaluation of your product’s resistance to different weather conditions.
Identify and address potential issues such as discoloration, brittleness, or elasticity loss before launching your product, ensuring long-term reliability.
From automotive and construction to medical and electronics sectors, our solar radiation tests cater to diverse industries and materials.
Do you have any questions?
Want to learn more about our testing methods or specific tests? Our experts are here to help with any inquiries you might have. Reach out today and find out how the Sebert Group can support you in delivering unmatched quality and reliability.
