MIL-PRF-131K
4.6 Verification of performance requirements.
4.6.1 MIL-STD-3010 test methods. Unless otherwise specified, the tests in table VI shall
be conducted in accordance with the identified methods of MIL-STD-3010.
TABLE VI. Test methods.
MIL-STD-3010
Special Requirement
Tests
Test
or Exception
Method No
Note
Seam strength
2024
1/
Water vapor transmission rate
After room temperature flexing
2017
2/
(as received and aged)
--
Transmission rate procedure
3030
Water vapor transmission rate
2017
3/
After low temperature flexing
(as received only) (except class 2)
Transmission rate procedure
3030
--
Puncture resistance
2065
4/
Blocking resistance
3003
--
Resistance to curl
2015
5/
Contact corrosivity
3005
6/
Oil resistance (delamination)
3015
7/
Water resistance
3028
8/
Water resistance of marking
3027
9/
1/
Any evidence of delamination of one ply away from the other in the heat-sealed area shall be
cause for rejection. The evaluation shall be limited to the heat-sealed area.
2/
Full stroke shall be used for flexing all class 1 materials. Short stroke (3 ¼ inches)
shall be used for class 2 materials.
3/
Conduct tests as specified in MIL-STD-3010, Method 2017, except that only as received
specimens shall be tested. Prior to flexing, test specimens shall be conditioned for at least
30 minutes at -20 ± 2 °F and the flexing operation shall be conducted at -20 ± 2 °F.
Test shall be run on five specimens. Material under test shall have the heat-sealable face in
4/
contact with the probe. The average value of the five specimens tested shall meet the
requirement specified in table I.
Three specimens shall be tested.
5/
If corrosion is evident in the non-contact area, the test shall be repeated with a new test panel.
6/
Corrosion in the intermediate area shall not invalidate the test nor be cause for rejection. The
barrier material shall be evaluated individually.
7/
Oil conforming to ASTM-D471, and a di-2-ethylhexyl sebacate synthetic oil shall both be
used.
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