08-11-2021, 04:08 AM
ECE 22.05
"The ECE 22.05 standard is quite a bit younger than the current DOT standard, and in many ways offers a more comprehensive battery of testing than its American cousin. ECE standards test for safety features that can contribute to avoiding an accident altogether, such as the optical quality of approved face shields, and safety factors not directly related to impact, such as shell rigidity. Unlike the DOT, every ECE 22.05 certified helmet model must actually be tested against the standard by an independent lab before it is available for sale with an ECE sticker.
Average motorcycle crash speeds in Europe are significantly lower than in the United States, and this plays a key influence in the design of ECE impact testing. ECE testing uses a smooth anvil known as a curbstone, which delivers a much lower energy blow than the hemi anvil (used in SNELL and DOT testing). ECE impact tests only consist of a single blow, resulting in a relatively low-energy testing scheme overall. While the DOT and SNELL testing allows a technician to strike a helmet anywhere within a range, ECE tests require the strikes at fixed points. This leaves open the possibility of helmet manufacturers “gaming the system” and beefing up protection at those points to pass an unsafe helmet."
ECE 22.05
PROS:
Standards are actively and thoroughly tested on all helmets sold with ECE certification
Very low peak energy allowable (only 275 g)
Extensive battery of testing for a variety of safety-related features.
Eight head forms for a larger range of testing variables
CONS:
Curbstone anvil and single strike equal very low-energy testing, arguably too low for the higher speeds in the United States
Fixed helmet strike positions make it possible to cheat the impact testing
Head form variety can mean displaced center of gravity during testing, reducing impact energy in tests by up to 20 percent
https://www.revzilla.com/common-tread/he...atings-101
"The ECE 22.05 standard is quite a bit younger than the current DOT standard, and in many ways offers a more comprehensive battery of testing than its American cousin. ECE standards test for safety features that can contribute to avoiding an accident altogether, such as the optical quality of approved face shields, and safety factors not directly related to impact, such as shell rigidity. Unlike the DOT, every ECE 22.05 certified helmet model must actually be tested against the standard by an independent lab before it is available for sale with an ECE sticker.
Average motorcycle crash speeds in Europe are significantly lower than in the United States, and this plays a key influence in the design of ECE impact testing. ECE testing uses a smooth anvil known as a curbstone, which delivers a much lower energy blow than the hemi anvil (used in SNELL and DOT testing). ECE impact tests only consist of a single blow, resulting in a relatively low-energy testing scheme overall. While the DOT and SNELL testing allows a technician to strike a helmet anywhere within a range, ECE tests require the strikes at fixed points. This leaves open the possibility of helmet manufacturers “gaming the system” and beefing up protection at those points to pass an unsafe helmet."
ECE 22.05
PROS:
Standards are actively and thoroughly tested on all helmets sold with ECE certification
Very low peak energy allowable (only 275 g)
Extensive battery of testing for a variety of safety-related features.
Eight head forms for a larger range of testing variables
CONS:
Curbstone anvil and single strike equal very low-energy testing, arguably too low for the higher speeds in the United States
Fixed helmet strike positions make it possible to cheat the impact testing
Head form variety can mean displaced center of gravity during testing, reducing impact energy in tests by up to 20 percent
https://www.revzilla.com/common-tread/he...atings-101