High velocity impact safety glass test method is performed by shooting a 1/4" steel ball at a speed of 150 feet per second aimed at the center of the lens. The result is a Pass or Fail which determines that a lens must not chip, break, or crack and it must maintain its original position in the frame.
Eye protection rating for prevention of dust hazards from entering the eye
Elastic
Yes
Dust
14%
Yes
Yes
Clear
90
Duramass Anti-Fog
Black
PU (Polyurethane)
Direct Vented / Perforated
60
21.180
Dozen White Box
5.648