Accelerated Exposure of Automotive Exterior Materials Using SAE J2020 Fluorescent UV and Condensing Apparatus

The SAE J2020 standard, developed by the Society of Automotive Engineers (SAE), describes the operating conditions of a fluorescent ultraviolet (UV) and intensifier apparatus used for accelerated exposure of various automotive exterior components.

Sample preparation, testing time, and performance evaluation procedures are covered in the material specifications of each automotive manufacturer. This standard may include hazardous materials, processes and equipment. However, it does not claim to address all the security problems associated with use.

This test method is designed to provide exposure acceleration to simulate the extreme environmental conditions encountered outside of an automobile due to sunlight, heat and to determine the performance of exterior automotive materials.

For the purposes of this standard,

• Black panel thermometer refers to a temperature measuring instrument consisting of a metal panel, a black coating that absorbs the entire wavelength homogeneously, and a thermally sensitive element firmly attached to the center of the exposed surface. The black panel thermometer is used to control an artificial aging device and provide an estimate of the maximum temperature of samples exposed to a radiant energy source.
• Fluorescent UV lamp refers to a lamp in which light from a low pressure mercury arc is converted into higher wavelength UV by means of a phosphor. The spectral power distribution of a fluorescent lamp is determined by the emission spectrum of the phosphor and the UV transmittance of the glass tube.

In short, the SAE J2020 standard offers an accelerated aging test that allows to predict the effects of heat and sunlight on the performance of exterior auto parts over time. This test is done by exposing auto parts to weather conditions encountered outside of a car. This is based on the use of UV lights and an environment with high humidity and temperature. With the help of the data collected from the test, it is possible to characterize the evolution of the material's properties under normal conditions.

Among the numerous test, measurement, analysis and evaluation studies it provides for businesses in various sectors, our organization also provides testing services to determine the accelerated exposure of automotive exterior materials using fluorescent UV and condensation apparatus, within the scope of SAE J2020 standard, with its trained and expert staff and advanced technological equipment. .