MIL-DTL-43191J
TABLE IX. End item tests - Continued
Requirement
Characteristic
paragraph
Test method
Weight
3.7
ASTM-D-3776
Breaking Strength
3.7
ASTM-D-5034
Tearing strength
3.7
ASTM-D-1424
Yarns per inch
3.7
ASTM-D-3775
Air Permeability
3.7
ASTM-D-737
Weave
3.7.1
Visual 1/
Water repellent treatment
(Class 2, 3, 4, 5 & 6) 6/:
Dynamic absorption:
AATCC-70
Initial
3.8.1
AATCC-96 VIc 7/ and AATCC-70
After 15 launderings
3.8.1
Hydrostatic pressure:
Initial
3.8.1
AATCC-127
After 3 launderings
3.8.1
AATCC-96 VIc and AATCC-127
Spray rating:
3.8.1
Initial
AATCC-22
pH
3.8.2
AATCC-81
Resistance to organic liquids
(Class 2, 3, 4, 5 & 6):
3.8.3
Initial
AATCC-118
3.8.3
After 15 launderings
AATCC-96 VIc 7/ and AATCC-118
Dimensional stability
3.9
AATCC 96 VIc 8/
Seam efficiency
3.11
ASTM-5034 9/
1/ Unless otherwise specified, a certificate of compliance shall be submitted and will be
acceptable for the stated requirement (see 6.4).
2/ In case of dispute, the ASTM method prevails.
3/ The cotton content shall be calculated as follows:
Cotton content, percent = R/S x 100
R = Weight of residual fibers
S = Weight of dry desized specimen
4/ One determination shall be made from each sample unit and the result reported as
"pass or fail".
5/ Only the stain on the nylon and cotton fibers of the color transfer cloth shall be evaluated and
the stain shall be "3-4" or better for all colors, except Black 357 which shall be
"3.0" or better.
6/ The contractor shall report the approved water repellent used, and certify that no other
material (except the specified buffer and acetic acid) has been added.
7/ Specimens shall be subjected to 15 complete cycles (wash and dry) prior to determinations of
dynamic absorption, spray rating and resistance to organic liquid after laundering. The last
two (2) wash cycles shall be performed without the addition of detergent.
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