MIL-B-44430(GL)
4.5.6 Vacuum examination. Cans shall be allowed to cool to 750F + 50F,
held for at least 24 hours after sealing, and then examined for vacuum
retention. To examine, lay a straight edge in the center of the lid along the
length of the tray pack. Both ends of the straight edge shall touch the lid
at the inside of the double seam. There shall be a visible gap between the
straight edge and the lid for the entire distance of the label panel. Using a
shorter straight edge, the same procedure shall be used across the width, in
the center of the tray pack can. One measurement shall be made when examining
a ribbed lid; lay the straight edge between the two center ribs along the
length of the can. The inspection lot shall include only tray packs produced
in a single shift on a single sealing machine. The sample size shall be 50
cans. Any nonconformance shall be classified as a major defect and shall be
cause for rejection of the lot.
4.5.8 Shipping container examination. Shipping containers shall be
examined for defects in assembly, closure, and reinforcement (when applicable)
in accordance with PPP-B-636. In addition, the following defects shall be
classified as follows:
Major:
National stock number, item description, contract number, or date of
pack markings missing, incorrect, or illegible.
Reinforced with other than nonmetallic strapping or tape.
Dimensions of pads not as specified.
Interior packing with fiberboard liner or pads not as specified.
Minor:
Other required markings missing, incorrect, or illegible.
Arrangements or number of cans not as specified.
4.5.9 Unit load inspection. Inspection of unit loads shall be in
accordance with the quality assurance provisions of MIL-L-35078.
5.
PACKAGING
5.1 Preservation.
The product shall be preserved in accordance with level
A.
5.1.1 Level A. One hundred and six ounces of food product shall be filled
into a tray pack can conforming to MIL-C-44340 and sealed, and thermoprocessed
as specified in 3.4 and 3.5.
5.2 Packing. The product shall be packed in accordance with level A, B, or
C, as specified (see 6.1).
5.2.1 Level A packing. Four cans of product, preserved as specified in
5.1, shall be packed in a snug-fitting fiberboard box, constructed and closed
in accordance with style RSC-L or HSC-L with a HSC full depth cover, grade V2s
of PPP-B-636. The cans shall be packed flat, four in depth within the box,
with the first two cans placed with the lids together and the next two cans
with the lids together. The inside of each box shall be provided with a box
liner and five fiberboard pads fabricated of grade V3c fiberboard. The height
of the box liner shall be equal to the full inside depth of the box (+0 inch,
-1/8 inch). Flute direction of the box liner shall be vertical. The pads
shall be placed between the cans and on the top and bottom of the stacked
cans. The pad dimensions shall be not less than 1/8 inch of the full length
and width dimensions of the box. Each box shall be reinforced with
nonmetallic strapping of pressure-sensitive adhesive filament-reinforced tape
in accordance with the appendix of PPP-B-636. Shipping containers shall be
arranged in unit loads in accordance with MIL-L-35078 for the type and class
of load specified (see 6.1), except that the unit load shall consist of 48
boxes with 12 boxes per course and four courses per load with all courses
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