Gmax/Impact testing carried out in Sharon, Vermont to ASTM F355

The two field tests recognized in the athletic industry for determining impact resilience are GMAX, and HIC (Head Injury Criterion) testing. Both the gmax and HIC tests measure impact attenuation, or the amount of force a playing surface absorbs upon impact. Higher gmax test values reflect a surface which is absorbing less impact and therefore returning more force to the athlete.

HIC and Gmax testing is carried out in Sharon, Vermont in line with ASTM F355 and can be scheduled via the form below.