---
kind: "section"
citation: "16 C.F.R. § 1203.9"
title: "16"
number: "1203.9"
heading: "Test headforms."
url: "https://uscodex.org/cfr/16/1203.9"
---

# §1203.9. Test headforms.


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](/cfr/16/1203.10.md). Headforms used for impact testing shall be rigid and be constructed of low-resonance K-1A magnesium alloy.


## Notes

### Authority

Authority: 15 U.S.C. 2056, 2058, and 6001-6006. Subpart B is also issued under 15 U.S.C. 2063. Subpart C is also issued under 15 U.S.C. 2065.

### Source

Source: 63 FR 11729, Mar. 10, 1998, unless otherwise noted.