Document ID: chunk:federal_register_of_legislation:F2015C00542:front:0:p15
Version: federal_register_of_legislation:F2015C00542
Segment Type: other
Provision Reference: 
Character Range: 41761–44807

purpose of this test is to verify the compliance of glazing with the requirements relating to the limitation of injury in the event of impact of the head against the windscreen, laminated glass and glazing of glass-plastic and rigid plastic other than windscreens, together with the multiple-glazed units used in the side windows.
8.1.3. Test of resistance to the environment
8.1.3.1. Test of resistance to abrasion
 The purpose of this test is to determine whether the resistance of a safety glazing to abrasion exceeds a specified value.
8.1.3.2. Test of resistance to high temperature
 The purpose of this test is to verify that no bubbles or other defects occur in the interlayer in laminated glass or glass-plastics glazing when exposed to high temperatures over an extended period of time.
8.1.3.3. Resistance-to-radiation test
 The purpose of this test is to determine whether the light transmittance of laminated-glass panes, glass-plastics glazing or glass glazing faced with plastics material when exposed to radiation over an extended period of time is significantly reduced thereby or whether the glazing is significantly discoloured.
8.1.3.4. Resistance-to-humidity test
 The purpose of this test is to determine whether laminated‑glass panes, glass‑plastic panes, glass glazing faced with plastic material and rigid plastic material will withstand, without significant deterioration, the effects of prolonged exposure to atmospheric humidity.
              8.1.3.5. Resistance-to-temperature-changes test
 The purpose of this test is to check that plastics material(s) used in safety glazing above will withstand the effects of prolonged exposure to extremes of temperature without significant deterioration.
8.1.3.6. Resistance to simulated weathering test
 The purpose of this test is to verify that plastic safety glazing is resistant to simulated weathering conditions.
8.1.3.7. Cross cut test
 The purpose of this test is to examine whether any abrasive resistant coating of a rigid plastic glazing has sufficient adherence.
8.1.4. Optical qualities
8.1.4.1. Light-transmission test
 The purpose of this test is to determine whether the regular transmittance of safety glazing exceeds a specified value.
8.1.4.2. Optical-distortion test
 The purpose of this test is to verify that the distortion of objects as seen through the windscreen is not of such extent as to be likely to confuse the driver.
8.1.4.3. Secondary-image-separation test
 The purpose of this test is to verify that the angular separation of the secondary image from the primary image does not exceed a specified value.
              8.1.5. Burning-behaviour (fire-resistance) test
 The purpose of this test is to verify that a safety glazing material has a sufficiently low burn rate.
              8.1.6. Test of resistance to chemicals
 The purpose of this test is to determine whether the safety glazing material will withstand the effects of exposure to chemicals likely to be normally present or used within the vehicle (e.g. cleaning compounds) without