Page 4 SPECIFICATION RT-1323 ISSUE 1
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TABLE 1
Requirements
PROPERTY UNIT REQUIREMENT TEST METHOD
PHYSICAL
Dimensions
in (mm)
In accordance with applicable
specification control drawing.
Sec. 4.3.1
Dimensional Recovery in (mm) In accordance with applicable
specification control drawing.
Tensile Strength, min. psi (MPa) 1000 minimum (7) Sec. 4.3.2
Ultimate Elongation, min. Percent 250 minimum ASTM D 412
Secant Modulus at 2% Strain psi (MPa) 7250-17400 (50-120) Sec. 4.3.3
ASTM D 882
Specific Gravity --- 1.5 maximum ASTM D 792
Low Temperature Flexibility
4 hours at -20°C (-4°F)
--- No cracking Sec. 4.3.4
Heat Shock
4 hours at 225°C (437°F)
--- No dripping, flowing or cracking Sec. 4.3.5
Heat Aging
168 hr. at 150°C (302°F)
Followed by tests for:
--- --- Sec. 4.3.6
Tensile Strength psi (MPa) 1000 minimum (7)
Ultimate Elongation Percent 100 minimum
ELECTRICAL
Dielectric Strength
V/mil (kV/mm)
380 minimum (15)
ASTM D 149
Short time test
Volume Resistivity ohm-cm
10
12
minimum
ASTM D 257
CHEMICAL
Water Absorption
24 hours at 23°C (73°F)
24 hours at 70°C (158°F)
Percent
0.5 maximum
1.5 maximum
ASTM D 570
Limiting Oxygen Index Percent 30 minimum ASTM D 2863
Oxygen Index
at Elevated Temperature
°C 250minimum Sec. 4.3.8
Flammability
Average Time of Burning
Average.Extent of Burning
seconds
in (mm)
100 maximum
1 maximum (25)
ASTM D 635
Smoke Density, Ds
4 minutes, flaming mode
--- 60 maximum ASTM E 662
Acid Gas Generation
HCl Equivalent
Percent 1.5 maximum MIL-C-24643
