What are the best methods to test the UV stability of plastic outdoor trash cans?

Ensuring the UV stability of plastic outdoor trash cans is critical for their longevity and performance. The most effective testing methods combine laboratory precision with real-world conditions. Accelerated weathering testing, using devices like xenon-arc or QUV testers, simulates years of sun exposure in weeks by controlling UV radiation, temperature, and moisture according to standards such as ASTM G155 or ISO 4892. Real-time outdoor exposure testing, while time-consuming, provides invaluable data by placing samples in harsh, sunny environments like Arizona or Florida for direct monitoring of degradation. Spectrophotometry measures color change and fading, while FTIR spectroscopy analyzes chemical structure changes like polymer breakdown. Mechanical testing post-exposure assesses retained properties—impact resistance, tensile strength—to ensure functionality. For reliable results, combine accelerated tests with real-world validation, use control samples, and follow ASTM/ISO standards. This comprehensive approach guarantees trash cans withstand UV damage, preventing brittleness, color loss, and premature failure.