Glossary

Glossary

NIJ – The US National Institute of Justice, publisher of the most widely used body armor ballistic standards.

NIJ 0101.06 – The current NIJ standard for ballistic resistance of body armor, defining levels IIIA, III and IV.

Level IIIA – Protection against most handgun rounds including 9mm and .44 Magnum.

Level III – Protection against rifle rounds such as 7.62x51mm M80 ball.

Level IV – Protection against armor-piercing rifle rounds.

Aramid – A high-tenacity synthetic fiber used in soft armor panels.

UHMWPE – Ultra-high molecular weight polyethylene, a lightweight fiber used in hard and soft armor.

STANAG 2920 – NATO fragmentation test standard for helmets and vests.

V50 – The velocity at which a projectile has a 50% probability of penetrating the armor.

GA 141 – The Chinese public security industry standard for ballistic body armor.