Views:3 Author:Site Editor Publish Time: 09-16-2019 Origin:Site
The U.S. Military issued rigorous ballistic tests that protective eyewear worn by military personnel have to pass. These tests are conducted in a field environment that involves subjecting eyewear to projectiles at over four times the velocity of standard ANSI Z87.1 testing, the standard for industrial safety eyewear.
As an example, ANSI (American National Standards Institute) tests projectiles at 150 fps (feet per second). While the military requires testing with projectiles traveling at 650 (+/- 10) fps for spectacles and 550 fps for goggles.