A-A-2851C
3.2.1.1 Type II, Class 1, Style A. Covers shall be of tanned sheepskin with designated pile heights as specified in Table 1. The sheepskin shall be of a uniform color without bare spots, cuts, holds or hard spots.
Table 1
|
Type II, Class 1, Style A |
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|
Thickness |
Tolerance |
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|
16 |
5/8 |
+/- 1.6 |
+/- 1/16 |
|
25.4 |
1 |
+/- 2.4 |
+/- 3/32 |
|
32 |
1-1/4 |
+/- 4.8 |
+/- 3/16 |
3.2.1.2 Type II, Class 1, Style B. Covers shall be made of a woven pile fabric with the pile being a blend of mohair and viscose fibers. The pile yarn shall be woven with a “W“ bind weave with 212 tufts per square inch +/-5%. The backing fabric shall be woven with 55 ends (warp) and 46 picks (filling) per inch +/-5%. The backing fabric shall be coated with a heat-cured synthetic coating. Pile thickness, backing yarn size, pile yarn content and weight of fabric shall be as specified in Table 2.
Table 2
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Type III, Class 1, Style B |
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Pile |
Backing Yarn |
Pile Yarn Content |
Fabric Weight/Square Yard Including backing |
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|
Thickness |
Tolerance +/- |
Size Warp Filling |
Percent |
Minimum |
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|
mm |
Inch |
mm |
Inch |
Cotton |
Polyester |
Mohair |
Viscose |
Grams |
Ounces |
|
5 |
13/64 |
0.8 |
1/32 |
20/2 |
10/1 |
40 |
60 |
606 |
19.5 |
|
6 |
1/4 |
0.8 |
1/32 |
20/2 |
10/1 |
40 |
60 |
684 |
22 |
3.2.1.3 Type II, Class 2, Style A. Covers shall be knotted, crimped polyester on a 100 percent polyester backing. The backing shall be knit with not less than 10 wales, and not less than 21 courses nor more than 25 courses per inch. The fabric shall be back coated with a heat-cured synthetic coating. Pile height, polyester size, denier of pile and weight per square yard shall be in accordance with Table 3.
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