MIL --- DTL --- 51400A(EA)
4.4 Tests. Tests shall be conducted as follows:
4.4.1 Leak integrity. Suspend each bag to be tested in an upright position by means of at
least four widemouth clamps attached to the open end. Fill the bag with water to the required
depth. To avoid condensation of water from the surrounding air the water should be at approxi-
mately room temperature. Let the water --- filled bag hang for the required time period and ex-
amine the outside of the bag for leakage.
4.4.2 Seam strength. Die one dumbbell specimen conforming to die A of ASTM D 412 from
each sample waterproof bag. The full width of the seam shall be within the constricted portion
of the specimen and the long dimension of the specimen shall be approximately perpendicular
to the seam. Condition the specimens at 70û± 5ûF for a minimum of one --- half hour. Test the
specimens in accordance with Method 8311 of Fed. Test Method Std. No. 601.
4.4.3 Marking. Submerge each waterproof bag to be tested in water at 70û± 5ûF for 30
minutes so that the printing will be wet. Remove the bag from the water and wipe dry. Within
4 minutes after removing from the water, apply 5 inches of 1/2 by 6 --- inch strips of masking tape
conforming to type II of ASTM D 6123 at right angles to the printed lines so that at least 45
letters are covered. Place the bag on a hard smooth surface and roll a 10 --- pound, hard --- sur-
faced, hinged roller with a diameter of approximately 5 inches over the applied strips three
times. The roller shall travel at approximately 12 inches per 10 seconds. A strip of paper may be
applied to the adhesive side of the extending 1 --- inch section of the tape to prevent adhesion to
the bag during rolling. Immediately after application, double back the free end of the tape at
about 180 degrees and peel the tape slowly and evenly from the bag. Examine the printing and
verify that no more than five characters are illegible.
4.4.4 Low temperature resistance. Test the material specimens in accordance with Method
5874 of FED. TEST METHOD STD. No. 191, except the specimens shall be exposed to the
temperature specified on Drawing 5 --- 75 --- 13 for not less than one hour.
5. PACKAGING
5.1 Packaging. For acquisition purposes, the packaging requirements shall be as specified
in the contract or order (see 6.2). When actual packaging of materiel is to be performed by DoD
or in --- house contractor personnel, these personnel need to contact the responsible packaging
activity to ascertain requisite packaging requirements. Packaging requirements are maintained
by the Inventory Control Point's packaging activities within the Military Service or Defense
Agency, or within the military service's system commands. Packaging data retrieval is available
from the managing Military Department's or Defense Agency's automated packaging files,
CD --- ROM products, or by contacting the responsible packaging activity.
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