MIL-PRF-46846D
TABLE II. Physical, electrical, and chemical properties of synthetic rubber tubing, class 1.
Property
Conditioning (see 4.4.2.3)
Requirement
Type II
Type III
Type IV
Type VI
Type II
Type III
Type IV
Type VI
Method
Longitudinal Change percent,
A
A
A
A
10
20
15
15
Paragraph 4.5.3
maximum
Tensile Strength, psi, minimum
600
1200
1200
1400
(See 4.4.2.1)
500
1400
1200
1000
(See 4.4.2.1)
Tensile Stress at 100 percent
elongation, psi, maximum
Elongation, percent, minimum
200
250
250
200
(See 4.4.2.1)
Specific Gravity, maximum
1.35
2.0
1.40
1.25
(See 4.4.2.1)
60 5
82 5
85 5
80 5
A
A
A
Hardness, Shore A
ASTM D2240
A
Low Temperature
Pass or Fail
Pass or Fail
Pass or Fail
Pass or Fail
(See 4.4.2.1)
E4/-95
E4/-40
E4/-67
E4/-103
------------------------ No dripping, flowing or cracking----------------------------
Heat Shock
Paragraph 4.5.4
E4/572
E4/-572
E4/392
E4/392
Heat Aging, followed by tests for:
Paragraph 4.5.5
500
1200
1000
1200
(See 4.4.2.1)
Tensile Strength, psi,
E168/482
E168/352
E96/902
E168/302
minimum
E168/482
120
200
100
100
(See 4.4.2.1)
Elongation, percent,
E168/392
E168/302
E96/302
minimum
300
150
100
220
(See 4.4.2.1)
Dielectric Strength, volts/mil,
A
A
A
A
minimum
1 X 1011
1 X 109
1 X 1010
1 X 1011
(See 4.4.2.1)
Volume Resistivity,
ohm-cm,
minimum
Flammability, seconds maximum
60: self-exting. 1/
15: self exting.
---
15: self exting.
(See 4.4.2.1)
Method A
Method B
Method A
(Use indicated
method)
Rating of 0 ----------------------------------------------
Fungus Resistance
ASTM G21
A
A
A
A
1.0
0.5
0.5
1.0
(See 4.4.2.1)
Water Absorption, percent,
E24/77
E24/77
E24/77
E24/77
maximum
(Procedure A)
Paragraphs 3.7 and
Solvent Resistance, followed by
4.5.6
tests for:
400
1200
1000
500
(See 4.4.2.1)
Tensile strength, psi,
E1/2/77
E24/77
E24/77
E24/77
minimum
120
250
200
100
(See 4.4.2.1)
Elongation, percent,
E1/2/77
E24/77
E24/77
E24/77
minimum
60
60
60
60
ASTM D2671
Eccentricity, percent,
A
A
A
A
minimum
1/ Not more than 25 percent of indicator flag burned; no dripping or flowing.
7
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