What testing standards ensure the quality of WPC used in outdoor sculptures?

Wood-Plastic Composite (WPC) is a popular material for outdoor sculptures due to its durability and aesthetic appeal. However, ensuring its quality requires adherence to specific testing standards. Key standards include ASTM D7031, which evaluates mechanical properties like strength and flexibility, and ASTM D790 for flexural performance. Weather resistance is tested under ASTM G154 for UV exposure, while moisture absorption is measured via ASTM D570. These standards collectively ensure WPC sculptures withstand environmental stressors, maintaining structural integrity and appearance over time. Manufacturers and artists rely on these benchmarks to guarantee long-lasting, high-quality outdoor installations.