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accelerated weathering test methods pdf

accelerated weathering test methods pdf

  • In Q 8/UV accelerated aging tester, the fluorescent UV of UV lamp can reproduce the influence of sunlight, and the condensation and water spray system can reproduce the influence of rain and dew. The temperature is controlled throughout the test cycle. Typical test cycles are UV exposure at high temperatures and dark wet condensation cycles with a relative humidity of 100% ; typically used in paint, automotive, plastic, wood, glue, etc. . Simulate sunlight Ultraviolet (UV) radiation in sunlight is a major cause of damage to the durability of most materials. We use UV lamps to simulate the short-wavelength ultraviolet part of sunlight, which produces very little visible or infrared spectral energy. We can choose different wavelength UV lamp according to different test requirements, because each lamp in the total UV radiation energy and wavelength are different. Usually, UV lamp can be divided into UVA and UVB.
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