SAE J2568:2020 pdf free
SAE J2568:2020 pdf free.Intrusion Resistance of Safety Glazing Systems for Road Vehicles
All test specimens will be production parts and mounted into the vehicle structure according to the manufacturer’s recommendations. They shall be held at laboratory conditions for at least 4 hours prior to testing. Tests shall be carried out under the following conditions: temperature: 20 °C±5 °C; pressure: 960 mbar±100 mbar; relative humidity: 60%±20%. All testing will be conducted with specimens installed on a vehicle or a vehicle subsection (such as installed on a door).
The following three-test sequence will be performed on a single test specimen. This test sequence simulates typical attacks on glazing, including: an attempt to shatter the glazing with a sharp-tipped implement; blunt impacts on the exterior of the glazing to penetrate the glazing; an attempt to pull outward on the glazing to remove it from the vehicle (simulated in this test by pushing outward with a ram).
Centered on location No. 3, a ram, as specified in 4.1.3, will be traversed in the direction from the interior towards the exterior, normal to the interior surface of the glazing, at a rate of 102 mm/min, until a force of 400 N is applied or until the test specimen fails, whichever occurs first.
For test specimens in which the glazed area is too small to accommodate the entire pendulum impact pattern, first perform the center punch or hammer attack on the exterior of the glazing at a central point. Next, carry out a single pendulum impact on the exterior of the glazing at any point that is further than 100 mm from the daylight opening. Then conduct the ram push-out test at the same location as the pendulum impact. If the glazing area is too small for the pendulum and the ram tests to be conducted, only the center punch or hammer attack will be performed.SAE J2568 pdf free download.
