The yellowing resistance irradiation Test Chamber is suitable for simulating sunlight's ultraviolet radiation and heat. The sample is exposed to ultraviolet rays and temperature in the machine. After a period of time, the degree of yellowing resistance of the sample is observed. The stained gray mark can be used as a reference to determine The yellowing grade test time depends on the manufacturer's agreement. The machine comes with a full range of accessories, which can be used as a basic yellowing resistance test, and can also be used as an aging testing machine and oven. It has a multi-purpose function.
1. Aging: This machine can promote the deterioration of vulcanized rubber to calculate the change rate of tension and elongation before and after heating. It is generally believed that one day of testing at 70℃ is theoretically equivalent to 6 months of exposure to the atmosphere.
2. Yellowing resistance: This machine is exposed to sunlight and ultraviolet rays in a simulated atmospheric environment. The appearance changes are generally considered to be tested at 50℃ for 9 hours, which is theoretically equivalent to 6 months of exposure to the atmosphere .
It is suitable for yellowing aging resistance testing of elastic materials, rubber, plastics, tires, conveyor belts, shoe soles , soft synthetic leather, leather and other materials. It has the characteristics of good reproducibility and simple operation.
JIS-P8127, ASTM D1148