HIC Test

A "HIC" test (ASTM F355-16E) is a test intended to simulate a head impact with the surface. The results predict the likelihood and severity of a head injury. 

Head Injury Criterion (HIC) is a different impact test value that includes the effects of both head deceleration rate and duration during the most critical time period of the impact event, not just the peak deceleration rate. Data originating from human cadaver and animal studies has shown that the HIC is a more accurate prediction of severe head injuries as compared to peak deceleration (G-max).