UV aging tests are tests that aim to simulate the prolonged exposure to sunlight for the storage of products under normal conditions. In these tests, instead of normal sunlight, ultraviolet (ultraviolet) provided by special devices is used. Therefore, the long-term effects of the sun's rays are achieved in a shorter time.

The aim of UV aging tests is to create possible visual and physical changes in the laboratory. Ultraviolet rays are called sun rays with different wavelengths that cannot be seen with the naked eye.

In advanced laboratories, UV aging chambers simulating this environment are used to measure the harmful effects of various materials against fading, cracking, peeling, oxidation, and the like against sunlight, moisture and temperature. Thanks to these rooms, the time required for testing in the real environment is shortened.

During these tests, temperature, humidity and UV intensity are controlled to simulate the natural environment. In this way, many materials such as paints, coatings, plastics, wood products, adhesives and the like can be subjected to UV aging test.

In the UV aging tests carried out in laboratories, the following standards are taken into consideration:

• TS EN ISO 4892 Plastics - Methods of exposure to laboratory light sources

• TS EN 1297 Flexible sheets - For waterproofing - Bitumen, plastic and rubber sheets for roof waterproofing - Artificial aging methods with long-term exposure to a combination of UV radiation, high temperature and water

• TS EN ISO 11985 Optics - Eye - Contact lenses - Aging by exposure to UV and visible radiation (in vitro method)

• TS EN 1903 Adhesives - Test methods for adhesives for plastics or rubber, floor or wall coverings - Determination of dimensional changes after accelerated aging