A Longitudinal Study of Playground Surfaces to Evaluate Accessibility - Final Report

Triax 2000.  A large tripod that can be raised to a fall height above the highest play surface on a playground.  A large sphere replicating the shape of a child’s head is dropped from the top of the tripod and the impact on the surface is measured.  A Triax is the instrument used to test playground surfaces for compliance with ASTM F1292‒99/04, also known as the “head drop test.”