Film Thickness
|
Peak
Pressure
(psi) |
Load
Duration
(ms) |
Peak
Impulse
(psi-ms) |
Response
|
6mm (1/4") annealed float
glass - no film applied
|
3.2 |
20.1 |
25.4 |
High hazard
with multiple fragments stuck
in witness board set 3m away from window |
6.8mm Laminated glass*
- no film applied
|
3.1 |
25.6 |
34.1 |
Glass left
window pane and struck witness
board (32 fps initial velocity). Reduced
hazard from impact of filmed glass |
'Daylight' film application
100 micron|
|
3.0 |
22.6 |
35.3 |
Filmed glass
pane struck witness board with
high impact load (64 fps initial velocity) |
FrameGARD with 100 micron
(4mil) security film
|
3.3 |
31.7 |
39.2 |
Glass broke
but held in window frame
(minor film tearing). Lw hazard from
fragments |
FrameGARD with 175 micron
(7mil) security film
|
5.9 |
23.0 |
46.0 |
Glass broke
but held in window frame
(no tearing). Low hazard from fragments |
FrameGARD with 250 micron
(10mil) security film
|
7.3 |
28.1 |
76.8 |
Glass broke
but held in window frame
(no tearing). No impact hazard to occupants |
FrameGARD with 350 micron
(14mil) security film
|
7.3 |
44.6 |
104.2 |
Glass broke
but held in window frame
(no tearing). No impact hazard to occupants |
FrameGARD with 250 micron
(14mil) security film
2 sided anchor system
|
10.1 |
15.1 |
40.0 |
Pane held in
frame with minimal glass loss
at edge. No impacts on witness board |