1.1 This terminology covers terms related to impact test methods and impact attenuation specifications of sports equipment and surfaces.

1.2 This terminology is appropriate for use in the development of standards that describe gravity-driven impact test methods or specify impact attenuation performance criteria and which fall under the jurisdiction of ASTM Committee F08 on Sports Equipment and Facilities.

1.3 This terminology defines common terms that are applicable to many sports-related impact tests including those used in the context of sports surfaces, athletic footwear, protective equipment and padding. The use of a common terminology will promote greater consistency among standards and reduce the risk of misinterpretation.

1.4 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.