Page 10 SPECIFICATION RT 1162- ISSUE 7
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TABLE 3
Requirements
PROPERTY UNIT REQUIREMENTS TEST METHOD
PHYSICAL
Dimensions
Inches (mm)
In accordance with Table 2
ASTM D 876
Tensile Strength psi. (MPa) 2000 (13.8) minimum Section 4.3.1
Extensibility Percent 150 minimum ASTM D 638
Specific Gravity --- 1.8 maximum ASTM D 792
Crush Resistance Lbs. (kg) In accordance with Table 1 Section 4.3.2
Compressive Flexibility Lbs. (kg) In accordance with Table 1 Section 4.3.3
Flexibility Inches (mm) 3 (76.2) minimum Section 4.3.4
Flex Life
10,000 cycles
Followed by test for:
--- --- Section 4.3.5
Dielectric Withstand (12 kV) --- No breakdown Section 4.3.9
Low Temperature Flexibility
4 hours at -55°C (-67°F) for 5 cycles
Followed by test for:
--- No visible cracks Section 4.3.7
Dielectric Withstand (12 kV) --- No breakdown Section 4.3.9
Heat Shock at 300°C (572°F)
Followed by test for:
Longitudinal Change
---
Percent
No dripping, flowing or cracking
20 maximum
Section 4.3.6
Section 4.3.6
Heat Aging
168 hours at 200°C (392°F)
Followed by tests for:
--- --- Section 4.3.8
Tensile Strength psi. (MPa) 2000 (13.8) minimum Section 4.3.1
Ultimate Extensibility Percent 100 minimum ASTM D 638
ELECTRICAL
Dielectric Withstand (12 kV)
---
No breakdown
Section 4.3.9
CHEMICAL
Flammability
Duration of Burning
Seconds
15, maximum
No dripping or flowing; no
burning or charring of indicator;
no flaming of cotton.
Section 4.3.11
Fluid Resistance
24 hours at 23°C (73°F)
Gasoline, Automotive
(MIL-G-3056)
Gasoline, Aviation, Grade 100
(ASTM D 910)
(MIL-T-81533)
Coolanol 25*
Followed by tests for:
--- --- Section 4.3.10
Tensile Strength psi. (MPa) 2000 (13.8) minimum Section 4.3.1
Ultimate Extensibility Percent 100 minimum ASTM D 638
Weight Change Percent 3 maximum
