Armouring standards

NIJ (National Institute of Justice) standard

There are three levels; each is protected by different systems of armoring. Of course, each level protects against weapons mentioned in lower levels. NIJ standards requires stopping 5 shots at each level and those shots must be 3 inches (7.62 centimeters) from each other and 2 inches from the side in order to pass the test. The NIJ IV level requires stopping a single shot only.Includes weapons such as hand guns.

Level Weapon Size Bullet Mass(g) Bullet Type Speed (m/s) Shots
IIIA Hand gun 9 mm
0.357 Magnum
0.44 Magnum
8.0
10.2
15.6
FMJ/S
JSP
SWC
425
426
425
5
III M16 Rifle
AK-47
7.62x39
5.56x45
7.62x51
9.7
4.0
9.5
FMJ/S
FMJ/S
FMJ/S
732
950
838
5
IV Rifle 7.62x51 AP 9.5 FMJ/HC 869 1

FMJ Full metal jacket
FMJ/S Full metal jacket
FMJ/H Full metal jacket
FMJ/F Full metal jacket flat nose
AP Armored piercing
SWC Steel wad cutter
JSP Jacket soft point

Central European Normalization

There are four levels within this normalization. Each level requires stopping 3 shots at corners of 120 mm triangle to pass.

Level Weapon Size Bullet Mass(g) Bullet Type Speed (m/s) Shots
B4 Hand gun 9x19 mm
0.357 Magnum
0.44 Magnum
8.0
10.2
15.6
FMJ/SC
FMJ/SC
FMJ/FN
400
430
440
3
B5 AK-47
M16 Rifle
7.62x39
5.56x45
9.7
4.0
FMJ/SC
FMJ/SC
722
950
3
B6 Rifle 7.62x51 9.5 FMJ/HC 820 3
B7 Rifle 7.62x51 AP 9.5 FMJ/HC 820 3

FMJ Full metal jacket
FMJ/S Full metal jacket soft
FMJ/H Full metal jacket
FMJ/F Full metal jacket flat nose
AP Armored piercing
SWC Steel wad cutter
JSP Jacket soft point