The test standards GB 9656-2003 has specific requirements for testing automotive glass.
Size and appearance requirements: appearance quality, size and allowable deviation, curvature.
Mechanical properties: curvature, surface stress, shotgun bag impact performance, impact resistance, thermal shock resistance, wind pressure resistance, etc.
Optical performance: visible light transmittance, visible light reflectance.
Safety performance requirements: resistance, humidity resistance, resistance to overlapping light, drop ball replacement performance, shotgun bag impact performance.
Here are heat resistance test and humidity test procedure. It can be tested with LIB Humidity Light Test Chamber equipment.
Heat Resistance Test
Evaluate whether the appearance quality of safety glass can change after high temperature for a certain period of time.
Three sheets with a size of 300mm×300mm were heated at 100°C and kept for 2 hours, and then the sheets were allowed to cool to room temperature naturally.
In order to determine whether safety glass can fully determine the role of atmospheric moisture for a certain period of time.
Three sheets with a size of at least 300mm×300mm are placed vertically in a closed container for 336h (two weeks), the temperature of the container is maintained at 50°C±2°C, and the relative humidity is 95±4%. If several slices are tested at the same time, appropriate gaps should be left between the slices.
Cablesare used extensively in electronic devices for power and signal circuits.Long-distance communication takes place over undersea cables.Power cables are used for bulk transmission of alternating and direct current power,especially using high-voltage cable.Electrical cables are extensively used in building wiring for lighting,power and control circuits permanently installed in buildings.
The Xenon Environmental Test Chamber simulates the weathering process of materials exposed to sunlight indoors and outdoors. This test is suitable for applications where protective materials such as paints and coatings are subject to high levels of UV degradation.