Ballistic Resistance STANAG 2920.The ballistic resistance STANAG defined by NATO ensures compliance with standards ballistic protection for military of Bollé Tactical eyewear. Each lens and each screen suffer the impact of a steel cylinder equivalent to a 0.22 caliber'' of up to more than 275 m / s or 990 km / h. The STANAG standards are recognized in all member countries of NATO.
Mechanical risk - Low energy impact - FLow energy impact, resists a 6 mm, 0.86 g ball at 45 m/s
Mechanical risk- High speed particles at extreme temperatures - TThe letter T, immediately after the mechanical strength symbol, authorizes use for high speed particles at extreme temperatures.
Solar radiations risks: EN 172Filter protection for industrial solar radiation. Recommended for outdoor work, EN172 norm guarantee a protection of 99.99% from ultra-violet solar radiation. Levels of application: 5-3.1 (Polarized) 5-2 (Twilight), 5-1.4 (ESP or CSP), 5/1.1-1.4 (Contrast), 5-2.5 and 5 to 4.1 (smoke) Lens color: depends on the lens technology