Do you know the ASTM G155 xenon arc accelerated weathering test?

ASTM G155 describes the general principles and operating procedures for xenon lamp installations used to expose non-metallic materials to simulated outdoor weathering conditions. This standard provides guidance for setting up, operating and maintaining equipment, and conducting and evaluating exposure test results.

The practice covers several aspects of exposure testing, including the selection and preparation of test samples, the control of exposure parameters such as irradiance, temperature and relative humidity, and the evaluation of test results such as color, gloss and physical properties of the material being tested change.

ASTM G155 specifies two different types of exposure periods, called "continuous light exposure" and "alternating light exposure and water spray". The choice of exposure period depends on the intended application of the material or coating under test.

The standard is widely used in a variety of industries, including automotive, construction and construction, and aerospace, to evaluate the durability and weather resistance of non-metallic materials such as plastics, paints, and coatings. By subjecting test specimens to simulated weathering conditions, the standard helps assess the long-term performance of materials and coatings and provides valuable information for product development and quality control.