Helmet Testing Videos These videos provide an overview of the pertinent ANSI Z89.1 and EN 12492 helmet testing requirements. Retention System Strength Testing Demo | EN12492 4.2.3 Retention System Effectiveness Testing Demo | EN 12493 4.2.4 Force Transmission Testing Demo | ANSI Z89.1 10.2 Apex Transmission Testing Demo | ANSI Z89.1 10.3 Off Center Penetration Test Demo | ANSI Z89.1 10.5 Impact Energy Attenuation Testing Demo | ANSI Z89.1 10.4