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See Chinese contents: GB/T 5137.1-2020 GB/T 5137.1-2020: Test methods of safety glazing materials used on road vehicles -- Part 1: Mechanical properties tests
This Part of GB/T 5137 specifies the test methods for impact resistance test, penetration resistance test, abrasion resistance test, fragmentation test, headform impact test, cross-cut test, and flexibility and folding test of safety glazing materials used on road vehicles. This Part applies to the tests of safety glazing materials used on road vehicles.
