MIL-DTL-82288C
3.4.1.5.2 Length. Each heat sealed sheet shall be pre-measured before further processing.
Length of the shorter of the two sides in inches
X 192 (in nom. Width)
= sq. feet
144 (inches in a square foot)
3.4.1.6 Cleanliness. Type I tarpaulins when procured in yellow shade 23655 of FED-STD 595
are applicable to a critical end use and shall be completely free and clean from all defects which
could cause contamination in that use.
3.4.2 Type II Tarpaulin. The tarpaulin shall be made as shown in figure 1. The finished
tarpaulin shall be made of not more than three (3) panels of the material specified in 3.2.1.
Seams shall be either heat-sealed or cemented with a suitable adhesive (see 3.2.5).
3.4.2.1 Dimensions. Measurements shall be 14 feet (+ 2 inches) in length and 12 feet
(+ 2 inches) in width.
*3.4.2.2 Splices. No more than one lengthwise panel in a tarpaulin may have one widthwise
splice. The splice may be no closer than 3 feet from the end of the tarpaulin. The seams shall be
spliced in accordance with 3.4.1.4.
3.4.2.3 Seams. The seams shall be full length and shall be parallel to the lengthwise direction of
the tarpaulin. Seams may be either heat sealed or cemented. The strength of the seam shall be
not less than 70 pounds per inch when tested as specified in 4.5. All seams shall be smooth and
fully adhered throughout their lengths and shall be free of puckers, air pockets or tunnels. As an
alternate to heat sealing or cementing, any other suitable method except stitching may be used
provided the above requirements are met.
3.4.2.4 Hems. The type II, tarpaulin shall have a two-inch, double turn under hem either
cemented, with a suitable adhesive (see 3.2.5) heat sealed or stitched as shown in figure 1.
3.4.2.4.1 Stitching. All stitching shall conform to stitch type 301 or 401 of ASTM-D 6193 , 7 to
9 stitches per inch. Stitching type for the hem shall be in accordance with figure 1. Thread
breaks in stitching shall be overstitched not less than 1 inch at each break, except where ends are
turned under in a hem and held down by the other stitching. Thread breaks of 401 stitch type
shall be repaired using 301 stitch type. The addition of any lubricant to the polyester thread prior
to or during the sewing operation is prohibited.
3.4.2.5 Attaching of grommets. Grommets, as specified in 3.2.3, shall be attached in accordance
with figure 1. Holes punched to receive grommets shall be smaller than the outside diameter of
the grommet barrel so that the grommet must be forced through the hole. Grommets shall be
securely clinched without cutting the material.
3.4.3 Patches. The application of repair patches to the surface of the laminated cloth and over
welded seams shall be permitted on either face or back of the sheets. Patches shall be made of
the specified basecloth and the surface grain shall run in the same direction, and shall be facing
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