ASTM F355-16e1 PDF Download

Impact attenuation of surface systems and materials is measured using the ASTM F355-16e1 standard. This test technique measures the maximum impact acceleration, or "impact shock," that is produced under particular impact circumstances.

The standard is applicable to many different kinds of surface systems, such as playground safety surfaces, pole vault landing systems, impact-attenuating padding and mats used in sports facilities, natural and artificial grass sports fields, and others. As long as they can be tested independently of the attached equipment, they can also be used to measure the impact attenuation of materials and parts used as protective padding on equipment like trampoline frames and goal posts.

Notably, unless the impact attenuation of the entire system is of concern, the test method should not be utilized to evaluate materials or components that are linked to structures or equipment. The guideline also states that although it is thought that proper impact attenuation lowers the risk of impact-related injuries, the precise connection between test results and injury risk has not been established.

This test method's outcomes can be used to compare the impact attenuation of various specimens examined under identical circumstances. Comparing test findings obtained under various circumstances or with various missiles or drop heights, however, is invalid.