MIL-DTL-3738L
TABLE I. Physical requirements.
Weight per
Dimensional
linear yard 56
Yarns per inch
Breaking strength
stability
inch width basis
(minimum)
(minimum)
(minimum)
Type
(minimum)
Warp
Filling
Warp
Filling
Warp
Filling
(Ounces)
Pounds
Pounds
Percent
Percent
160
90
5.5
3.0
I
19.0
128
98
140
80
6.5
4.0
II
18.0
124
80
130
70
6.5
3.0
III
16.0
138
96
5.5
3.0
128
98
160
90
IV
19.0
3.5.1 Width. The width of all types and classes of finished cloth shall be a minimum of 60
inches exclusive of selvage or tuck-in when woven on shuttleless looms.
3.6 Weave. The weave for Type II shall be as shown on Figure 1. The weave for Types I , III,
and IV shall be as shown on Figure 2 (see 4.3.4).
3.7 Finish. The face shall be clear and closely sheared. The type and character of finish shall
conform to that shown by the standard sample.
3.7.1 pH. The pH value of the water extract of the finished cloth shall be between 5.0
and 8.5 inclusive when tested as specified in 4.3.4.
3.8 Length and put-up. Unless otherwise specified (see 6.2), the cloth shall be finished in
continous lengths, each not less than 50 yards.
3.9 Wool content. The finished cloth shall contain not less than 95 percent wool based on the
dry weight of the specimen when tested as specified in 4.3.4.
3.10 Wool content label. Cloth manufactured under this document shall be labeled in
accordance with the Wool Products Labeling Act.
3.11 Marking. The back of the cloth shall be marked "BACK" at both ends of each roll with
letters not less than 1/2 inch in height. The marking shall be clearly legible in any indelible
marking used commercially.
3.12 Workmanship. The finished cloth shall conform to the quality established by this
document.
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