Parameters:

Framing Markings: STANAG 2920
Tinted Lens Markings: CE / ANSI Z87.1 antifog lens cat. 3
Transparent Glass Markings: CE / ANSI Z87.1 antifog lens cat. 1
Orange lens designation: CE / ANSI Z87.1 antifog lens cat. 0
Highest optical class (Optical class 1)
UV resistant, UVB and UVC protection 400 nm (nanometer)
All glass has AntiFog (anti-evaporation) and AntiScratch (protect against scratches)

Standards:

STANAG 2920/4296  STANAG (Standardization Agreement) means an agreement establishing conditions, technical procedures, etc. For ballistic protection and armor between alliance members. This standard specifies the V-50 parameter for the speed in m / s at which there is a 50% probability that a standard 1.1 g fragment will pierce the ballistic test subject.
ANSI Z87.1 / ANSI Z87 +  – the standard specifying the basic requirements for individual optical protection approved by American ANSI – American National Standards Institute. This standard covers eye and face protection requirements for minimizing the impact of shrapnel shells etc.
EN 166 
EN 12312-1 – a European standard covering requirements for sun protection for any non-corrective sunglasses and sunscreens in everyday use.
Swiss Eye Tactical Glasses Apache Details