How are WPC outdoor trash cans tested for load capacity before market release?

Before WPC (Wood-Plastic Composite) outdoor trash cans reach the market, manufacturers subject them to a series of stringent load capacity tests to ensure they can withstand real-world demands. The primary method is the static load test, where increasing weights are applied to the lid and body of the trash can for extended periods, often 24 to 48 hours, to simulate long-term stress from overfilling or external pressure. This test checks for deformation, cracking, or structural failure. Many manufacturers adhere to industry standards like ASTM D1990 or specific internal protocols that define the minimum load requirements, which can range from 200 to over 500 pounds depending on the bin's size and intended use. Additionally, dynamic impact tests are performed, where a weighted object is dropped onto the lid to mimic the shock of heavy debris being discarded. The trash can's base and mounting points (if applicable for fixed installation) are also tested for stability under load to prevent tipping. Successful completion of these tests, often verified by third-party laboratories, provides certification that the product is durable enough for public spaces, ensuring it won't collapse under normal or extreme usage conditions.