|
|
Type
IV
|
|
Property
|
Specification
|
T15M
|
|
Color
|
Dark
Blue
|
Dark
Blue
|
|
Density
range (lbs/ft³)
|
1.20
to 1.45
|
1.25-1.40
|
|
Porosity
(Pores per inch)
|
8-18
|
14
|
|
Air
pressure drop
(in. wg.)
|
0.140-0.230
|
0.20
|
|
Tensile
strength (psi)
|
10
min
|
19
|
|
Ultimate
elongation (percent)
|
100
min
|
170
|
|
Tear
resistance (psi)
|
3
min
|
4.0
|
|
Constant
deflection compression set (percent)
|
30
max
|
15
|
|
Compression
load deflection at 25% (psi)
|
0.35
min
|
0.55
|
|
Compression
load deflection at 65% (psi)
|
0.60
min
|
0.90
|
|
Fuel
displacement (volume percent)
|
2.5
max
|
<1.0
|
|
Fuel
retention
(volume percent)
|
2.5
max
|
2.1
|
|
Flammability
(in/min)
|
15
max
|
13
|
|
Extractable
materials (wt. percent)
|
3.0
max
|
2.6
|
|
Volume
increase
(volume percent)
Type I Fluid
Type III Fluid
JP-4 turbine fuel
|
15
37
25 |
10
23
16 |
|
Low
temperature flexibility
|
No
cracking or breaking of strands
|
|
Entrained
solid contamination (mg/ft³)
|
11.0
max
|
9.2
|
|
Steam
autoclave exposure
(percent tensile loss)
|
30
max
|
17
|