Impact energy attenuation reference standard is ANSI Z90.1b-1979.
In accordance with the methodology of the DOI/USFS Aviation Helmet Specification.
Chinstrap elongation test reference standard is FNS/PD 96-18.
Visor lens standard is MIL-V-43511C/D.
Flammability requirements of the Kairos™ retention webbing meet the specifications of FAR 25.853 (a), Appendix F.