The standard duration for material aging resistance testing of urban outdoor composite furniture typically ranges from 500 to 3000 hours in accelerated weathering chambers. This testing period simulates approximately 1-5 years of actual outdoor exposure through intensified UV radiation, moisture, and thermal cycling conditions. Manufacturers follow international standards such as ASTM G154 or ISO 4892-3 which specify precise cycles of UV exposure (typically 8 hours at 60°C) followed by condensation phases (4 hours at 50°C). The exact duration depends on the specific material composition, geographic climate expectations, and intended product lifespan. High-performance composites may undergo extended testing up to 3000 hours to verify resistance to color fading, surface degradation, and structural integrity. These rigorous protocols ensure that composite furniture maintains its aesthetic and functional properties despite continuous exposure to urban environmental factors including pollution, sunlight, and temperature fluctuations.
What is the usual time for the material aging resistance test of urban outdoor composite furniture?
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