This standard specifies the instruments, equipment, samples, test procedures and calculation methods for measuring the impact absorption energy and impact strength of impermeable graphite materials. This standard applies to the determination of the impact absorption energy and impact strength of impermeable graphite materials in a simply supported beam state.
GB/T 13465.4-2002 history
2014GB/T 13465.4-2014 Test method of impermeable graphite materials.Part 4:Impact strength
2002GB/T 13465.4-2002 Test method for impact of impermeable graphite materials