Optical PropertiesThe capability of letting light through, which can be measured in terms such as index of refraction, transmittance, and haze. ) for a limited amount of time in order to make an educated guess about how the product will behave over the course of its anticipated lifetime. This test is conducted in order to determine how the Plastic Machining product will perform over the course of its expected lifetime. These tests are performed with the intention of determining whether or not th...