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Under the new FIA 8860-2018 standard all helmets must withstand the following tests:
- Standard impact: Helmet impact at 9.5m/s. Peak deceleration on 'driver's head' shall not exceed 275G.
- Low velocity impact: Helmet impact at 6m/s. Peak deceleration shall not exceed 200G with a maximum average of 180g.
- Low lateral impact: Helmet impact at 8.5m/s. Peak deceleration shall not exceed 275G.
- Advanced Ballistic Protection: A 225g metal projectile fired at 250km/h. The peak deceleration shall not exceed 275G.
- Crush: A 10kg weight falling 5.1 metres onto helmet. Lateral and longitudinal tests. The transmitted force should not exceed 10 kN.
- Shell penetration: A 4kg impactor dropped onto helmet at 7.7m/s.
- Visor penetration: Air rifle fires 1.2g pellet at visor. Pellet must not penetrate the interior of the helmet.
- Visor coating: Transmitter test to ensure colouration and vision is not significantly changed or distorted.
- Retention system: Roll-off test and dynamic test to ensure strength of chin strap and its attachments.
- Chin guard linear impact: Impact test with full headform at 5.5m/s. The peak deceleration shall not exceed 275G.
- Chin guard crush: Hammer hits chin guard and measures ability to keep impact away from the head.
- FHR mechanical strength: Test to ensure high strength of attachment points for Frontal Head Restraints.
- Projection and surface friction: Test to ensure helmet surface uniformity and that friction is minimised. Shell surface also subjected to BARCOL hardness test for resistance to penetration.
- Flammability: Helmet exposed to 790°C flame; it must self-extinguish once flame is removed.
From Autosport.
- Standard impact: Helmet impact at 9.5m/s. Peak deceleration on 'driver's head' shall not exceed 275G.
- Low velocity impact: Helmet impact at 6m/s. Peak deceleration shall not exceed 200G with a maximum average of 180g.
- Low lateral impact: Helmet impact at 8.5m/s. Peak deceleration shall not exceed 275G.
- Advanced Ballistic Protection: A 225g metal projectile fired at 250km/h. The peak deceleration shall not exceed 275G.
- Crush: A 10kg weight falling 5.1 metres onto helmet. Lateral and longitudinal tests. The transmitted force should not exceed 10 kN.
- Shell penetration: A 4kg impactor dropped onto helmet at 7.7m/s.
- Visor penetration: Air rifle fires 1.2g pellet at visor. Pellet must not penetrate the interior of the helmet.
- Visor coating: Transmitter test to ensure colouration and vision is not significantly changed or distorted.
- Retention system: Roll-off test and dynamic test to ensure strength of chin strap and its attachments.
- Chin guard linear impact: Impact test with full headform at 5.5m/s. The peak deceleration shall not exceed 275G.
- Chin guard crush: Hammer hits chin guard and measures ability to keep impact away from the head.
- FHR mechanical strength: Test to ensure high strength of attachment points for Frontal Head Restraints.
- Projection and surface friction: Test to ensure helmet surface uniformity and that friction is minimised. Shell surface also subjected to BARCOL hardness test for resistance to penetration.
- Flammability: Helmet exposed to 790°C flame; it must self-extinguish once flame is removed.
From Autosport.
Snell and ECE also limit acceleration to 275G, but don't have a "low velocity impact" requirement with any lower acceleration limit. Snell has a double impact test. No ballistic, crush, visor, or fire requirements. All helmet certifications have strict requirements about retention systems.
The FIM (roadrace) standard is another new one. There are arguments about how big & heavy a helmet must be to meet the high impact tests and still perform well at slower impacts. I haven't seen much agreement about what a lower speed impact acceleration limit should be, and this is where medical direction is desperately needed. Hopefully the lower speed impact and lower acceleration limits are incorporated into a relevant moto standard soon. Until then, the only low-speed test results we might see will be at some arbitrary impact speed.
- Crush: A 10kg weight(mass?) falling 5.1 metres onto helmet. Lateral and longitudinal tests. The transmitted force should not exceed 10 kN.
This has PE of 500 J. Therefore the helmet can not deform more than .05m or 5cm?
Post a reply to: How do moto helmets compare to FIA specs?