|
Any
attack against Bodyarmour will reduce the 100% effectiveness
of the armour, the damaged panel should be replaced at
the earliest opportunity. During operations this may
not be practical and there are many reported instances
of armour continuing to be effective after a serious
attack. |
UK
STANDARD: (P S D B )
Ballistic Resistance of
personal Body Armour (2003)
|
|
PSDB
Level
|
Test Bullet
(Ammunition)
|
Bullet Weight
g/gr
|
Bullet Velocity
[m/sec] [ft/sec]
|
Distance
[m]
|
No.
Of Shots Per Panel
|
No.
Of Tests
|
|
HG1/A
|
9
mm FMJ
|
8.0
/ 124
|
360
+- 10
|
5
|
6
|
1
|
.357
Mag. JSP
|
10.2
/ 158
|
385
+- 10
|
5
|
6
|
1
|
|
HG1
|
9
mm FMJ
|
8.0
/ 124
|
360
+- 10
|
5
|
6
|
1
|
.357
Mag. JSP
|
10.2
/ 158
|
385
+- 10
|
5
|
6
|
1
|
|
HG2
|
9
mm FMJ
|
8.0
/ 124
|
425
+- 10
|
5
|
6
|
1
|
.357
Mag. JSP
|
10.2
/ 158
|
450
+- 25
|
5
|
6
|
1
|
|
SG1
|
Shotgun
12 gauge True cylinder
|
28.4
/ 437
|
435
+- 25
|
10
|
1
|
1
|
|
RF1
|
|
9.3
/ 144
|
830
+- 15
|
10
|
3
|
1
|
|
| FMJ = Full Metal Jacketed |
SJHP = Semi Jacketed Hollow
Point |
| JSP = Jacketed Soft Point |
LR LRN = Long Rifle lead Round Nose |
|
|
US
STANDARD: ( N.I.J.) |
NIJ Standard 0101.04
Ballistic Resistance of personal Body Armour
|
Level
IIA offers increased protection (9 mm and 40 S&W)
Level II offers greater protection (.357 Magnum and High
Velocity 9 mm)
Level IIIA offers the highest protection (most handgun
calibers)
|
|
|
NIJ Level
|
Test Bullet
(Ammunition)
|
Bullet Velocity
|
Distance [m]
|
No. Of Shots
Per Panel
|
m/sec
|
ft/sec
|
I
|
.22 caliber LR LRN*
|
329
+ - 9
|
1080
+- 30
|
5
|
6
|
|
.380 ACP FMJ RN*
|
322
+- 9
|
1055
+- 30
|
5
|
6
|
II-A
|
9mm FMJ RN*
|
341
+- 9
|
1120
+- 30
|
5
|
6
|
40
S&W FMJ RN*
|
322
+- 9
|
1055
+- 30
|
5
|
6
|
II
|
9mm
FMJ RN*
|
367
+- 9
|
1205
+- 30
|
5
|
6
|
357
Mag JSP *
|
436
+- 9
|
1430
+- 30
|
5
|
6
|
III-A
|
9mm
FMJ RN
|
436
+- 9
|
1430
+- 30
|
5
|
6
|
.44
Magnum JHP*
|
436
+- 9
|
1430
+- 30
|
5
|
6
|
III
|
7.62mm
NATO FMJ RN*
|
848
+- 9
|
2780
+- 30
|
15
|
6
|
IV
|
.30
caliber M2 AP*
|
878
+- 9
|
2880
+- 30
|
15
|
1
|
|
* = List Below |
- LR LRN: Long Rifle lead Round Nose
- FMJ: Full Metal Jacketed
- RN: Round Nose
- JSP: Jacketed Soft Point
- SJHP: Semi Jacketed Hollow Point
- AP: Armour Piercing
|
|
| |
Mechanics
of Blunt Trauma ( N.I.J.) |
When body armor defeats an impacting bullet through
expansion and deformation, kinetic energy is transferred
to the body. The resulting damage to tissue is called
blunt trauma. To comply with the N.I.J. Body Armor Standard,
this deformation cannot exceed 44 millimeters in Roma
Plastina #1 Clay.
|
|
|
|
Anti – Stab
Standards |
NIJ Standard – 0115.00
Stab Resistance |
An armour model
submitted for either knife resistance testing, or knife +
spike resistance testing, should be designed to meet one
of the three protection levels listed below: |
Protection
Level
|
Energy
Level Strike 1
|
Energy
Level Strike 2
|
Threat
Levels
|
KR1 or KR1+SP1 |
"EI" =
25 joules
(17.7 ft. lbs.) |
"E2" =
36 joules
(26.6 ft. lbs.) |
The lowest protection
level allowed, Armour at this level should offer
maximum periods of wear
in low risk patrolling environments and would be
suitable for covert use |
KR2 or KR2+SP2 |
"EI" =
33 joules
(24.3 ft. lbs.) |
"E2" =
50 joules
(36.9 ft. lbs.) |
A medium protection level This level
should provide for a general duty garment for extended
wear and may be covert or overt. |
KR3 or KR3+SP3 |
"EI" =
43 joules
(31.7 ft. lbs.) |
"E2" =
65 joules
(47.9 ft. lbs.) |
A high protection level.This level should be suitable
for short/medium periods of wear in high-risk situations.
This level would normally be overt. |
|
Penetration
Testing |
-
The new N.I.J.
Standard 0115.00. Maximum penetration of 0.28"/
7mm is allowed
-
An "Overtest" is also applied,
to push the breaking point of the armor, where 0.79"/
20mm of penetration is allowed
-
Testing is done
in two different categories of threat: "Edged Blades" (standard
knives) or "Spike" weapons (ice-pick or improvised)
|
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|
|
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|
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