Accelerated ageing test is a method used to estimate the long-term durability and performance of materials or products by exposing them to elevated stress conditions, such as increased temperature, humidity, light, or mechanical stress, over a shorter period. This test simulates the effects of aging over time, allowing manufacturers to predict the lifespan and potential failure modes of their products without waiting for real-time aging.

Procedure: Samples are exposed to one or more accelerated conditions, such as:

• Increased Temperature: Higher temperatures can accelerate chemical reactions, such as oxidation or polymer degradation, that occur over time.
• High Humidity: Elevated humidity levels can simulate the effects of moisture on materials, potentially leading to corrosion, mold growth, or other moisture-related degradation.
• UV Light Exposure: Simulating sunlight exposure can help assess the impact of UV radiation on materials, which can cause fading, cracking, or loss of structural integrity.
• Mechanical Stress: Repeated mechanical stress can simulate wear and tear that products might experience during use.

The duration and intensity of the test conditions are designed based on the specific material or product and the intended application. The test might last from hours to weeks, depending on the acceleration factor.