16 C.F.R. § 1203.9 Test headforms.
Title 16 - Commercial Practices
The headforms used for testing shall be selected from sizes A, E, J, M, and O, as defined by DRAFT ISO/DIS 6220–1983, in accordance with §1203.10. Headforms used for impact testing shall be rigid and be constructed of low-resonance K–1A magnesium alloy.
Title 16: Commercial Practices
PART 1203—SAFETY STANDARD FOR BICYCLE HELMETS
Subpart A—The Standard
§ 1203.9 Test headforms.
