Impact  Attenuation

ASTM standard 2440-04 Impact attenuation where the panel has achieved ratings below 1000 HIC and 200 g max.  This specification was developed due to the numerous designs in existence and the need to provide a method to determine if a wall pad meets a minimum level of protection. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

The test method quantifies impact in terms of g-max and Head Injury Criterion (HIC) scores. G-max is the measure of the maximum acceleration (shock) produced by an impact. The Head Injury Criterion or HIC score is an empirical measure of impact severity based on published research describing the relationship between the magnitude and duration of impact accelerations and the risk of head trauma.

Reference

1. ASTM Standard Designation: F 2440 – 04," Standard Specification for
Indoor Wall/Feature Padding" ASTM International, West Conshohocken, PA, 2003, DOI: 10.1520/C0033-03E01, www.astm.org.

2. ASTM Standard ASTM F1292 – 09," Standard Specification for Impact Attenuation of Surfacing Materials within the Use Zone of Playground Equipment" ASTM International, West Conshohocken, PA, 2003, DOI: 10.1520/C0033-03E01, www.astm.org.