SNELL, meanwhile, fire 1 gram, 5mm dia led pellets at a shield at 500 kph (true!). If the dart penetrates the shield, it fails the test. I am unable to source the document itself, but I chanced upon a study that compares various helmet standards and therein I found that VESC-8 fires a 44.2 gm metal dart at the protective eye gear (visor) from a height of 4.27 metres. While the organisation itself is defunct now, its standard has been adopted more or less everywhere. VESC was an American Vehicle Safety organisation, and the VESC-8 is a standard they created that sets the norm for protective eye gear. If you look carefully at the shield on your AGV/KBC/Sparx/Shoei, you will see a small piece of text that reads “EXCEEDS VESC-8.” The other day, after months of procrastination, I finally got around to figuring what that cryptic thing means.
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