The "ASTM G155-2005 Plastics, Outdoor xenon arc aging Test Method" standard provides a test method for simulating light and moisture conditions in the natural environment. The standard details the equipment requirements and operating steps for weathering resistance testing of plastic materials using Xenon-arc light sources and Humidity controls. The tests are designed to simulate the effects of actual daylight and moisture on plastic materials, thereby evaluating their aging performance. The standard covers Filter selection, sample preparation, and evaluation methods for Xenon-arc light sources, and emphasizes safety considerations such as the handling of ozone. Through this standard, the durability of plastics in long-term outdoor environments can be systematically evaluated to ensure the Reliability and performance of materials.