SPECIFICATION RT-1301 ISSUE 7 Page 7
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TABLE 3
Requirements
PROPERTY UNIT REQUIREMENT TEST METHOD
PHYSICAL
Dimensions
Inches (mm)
In accordance with Table 1
Section 4.3.1
ASTM D 876
Longitudinal Change Percent +1,-10 Section 4.3.2
Flow of Inner Wall --- No openings upon reheating Section 4.3.4
Tensile Strength psi (MPa) 1500 minimum (10.3) Section 4.3.4
Ultimate Elongation Percent 200 minimum ASTM D 638
Low Temperature Brittleness
at -55 °C (-67 F)
--- No failure ASTM D 746,
Procedure B
Heat Shock
4 hours at 250 °C (482 °F)
--- No dripping, flowing, or cracking
of the outer wall
Section 4.3.5
Heat Resistance
168 hours at 175 °C (347 °F)
--- No dripping, flowing or cracking
of the outer wall
Section 4.3.6
ELECTRICAL
Dielectric Strength
Volts/mil
500 minimum
Section 4.3.7
ASTM D 149
Volume Resistivity ohm-cm
10
15
minimum
ASTM D 257
CHEMICAL
Corrosive Effect
16 hours at 121 °C (250 F)
---
Noncorrosive
Section 4.3.8 and
ASTM D 2671
Fungus Resistance
Followed by tests for:
Tensile Strength
Ultimate Elongation
Dielectric Strength
psi (Mpa)
(10.3.)
percent
Volts per mil
(volts per mm)
1500 minimum
(10.3)
200 minimum
500 minimum
(19,860)
ISO 846 Method B
Section 4.3.4
ASTM D 638
Section 4.3.7
ASTM D 149
Water Absorption
24 hours at 23 °C (73 °F)
Percent 0. 5 maximum ASTM D 570
Fluid Resistance
24 hours at 23 °C (73 °F) in:
JP-8 Fuel (MIL-T-5624)
Skydrol* 500
Hydraulic Fluid (MIL-H-5606)
Aviation Gasoline (100/130)
Water
Section 4.3.9
Followed by test for:
Dielectric Strength
Volts/mil
400 minimum
Section 4.3.7
Tensile Strength psi 1000 minimum Section 4.3.4
