Underwriteslaboratories bullet resisting equipment- UL 752
RATING
AMMUNITION
ENERGY
JOULES
BULLET
WEIGHT
STRIKING
VELOCITY
# OF
STRIKE
SPACING
PATTERN
Width in mm
TEST
FT-LBS
GRAMS
GRAINS
M/S
FT/S
STRIKES
mm
INCHS
SHAPE
Composition
RANGE
LEVEL 1
9mm FMJ, LEAD
380/460
515/624
8
124
358/394
1175/1293
3
89.3/114.7
3.5/4.5
TRI
16 - 18
15FT
LEVEL 2
.357 MAG FMJ, SP
548/663
743/899
10.2
158
381/419
1250/1375
3
89.3/114.7
3.5/4.5
TRI
18 - 20
15FT
LEVEL 3
.44 MAG SWC, LEAD
971/1175
1317/1593
15.6
240
411/452
1350/1485
3
89.3/114.7
3.5/4.5
TRI
21 - 24
15FT
LEVEL 4
.30 RIFLLE FMJ,SP
2580/3120
3498/4929
11.7
180
774/851
2540/2794
1
89.3/114.7
MIDDLE
-
26 - 33
15FT
LEVEL 5
7.62 mm FMJ, BALL
2519/3048
3416/4133
9.7
150
838/922
2750/3025
1
89.3/114.7
MIDDLE
-
36 - 42
15FT
LEVEL 6
9mm FMJ, LEAD
540/653
732/885
8
124
427/470
1400/1540
5
114 X 114
4.5 X 4.5
SQUARE
33 - 42
15FT
LEVEL 7
5.56 FMJ, SC
1158/1402
1570/1901
3.56
55
939/1033
3080/3388
5
114 X 114
4.5 X 4.5
SQUARE
42- 56
15FT
LEVEL 8
7.62 mm FMJ, BALL
2519/3048
3416/4133
9.7
150
838/922
2750/3025
5
114 X 114
4.5 X 4.5
SQUARE
42-56
15FT
SHOTGUN
12 GAUGE SLUG
2438/2950
3306/4000
28.3
437
483/531
1585/1744
3
89.3/114.7
3.5/4.5
TRI
33-39
15FT
SHOTGUN
12 GAUGE 00 SHOT
2078/2415
2818/3275
42
650
366/403
1200/1320
3
89.3/114.7
3.5/4.5
TRI
36 - 42
15FT

MAX IS 110%
OF MIN VELOCITY
TESTING
SAMPLES
RANGE
TESTING
INDOOR
OUTDOOR
WITNESS
WITNESS
5 SHOT
12" X 12"
15 FEET
TEMP
MATERIALS
MATERIALS
PLATE
PLATE
PATTERN
305 X 305mm
4.6m
LEVELS   1-8
NON MET
NON MET
CORRUGATED
PLACEMENT
UL,UR,LR
METALS
LEVEL 1-5
LEVEL 1-5
CARDBOARD
18" BEHIND
LL,C
67 / 77 F
1 SAMPLE
SIDE A
125" THK
457mm
+/- 1/2"
19 / 25 C
55f, 13C
-26F+/-5
3.2mm
1 SAMPLE
-32C+/-3
95F, 35C
SIDE B
3 HOURS
72F+/-5
SOAK
22C+/-3
1 SAMPLE
120F+/-5
49C+/-3
3 HOURS
SOAK

COMPATIBILITY WITH Autotriplex STANDARS   Advantages of Autotriplex  standars
1) primary ammunition types 1) Autotriplex  includes 4common types of Soviet ammunition 
2)  same number of test samples for qualification (soviet ammunition is the most common word wide)
2) Autotriplex stipulation multiple ammunitionsfor selec leves 
(example: Fav standard, Ap)
[this stipulations puts a higher bunden on Autotriplex]
[creates a higher level of sefety for our costomers]
[you can not assume 1 bullet is more lethal than another]
3) AutotriplexOHEAC specifies a tighter velocity tolerance 
(example: 44 magnum protection of 1460 +/- 30 fps)
**use of large velocity ranges from low high create
  the ability to qualify an amor system at low velocities.
thes lower range is below the weapon standard fring
velocity. The upper range is an unrealistic velocity for the
standard round
4) Autotriplex specifies multi-hit capability at all levels