MIL-DTL-43191J
TABLE VI. Spectral reflectance requirements, Class 6 - Continued
Reflectance values (percent)
Wavelength,
Desert Sand 500
Urban Gray 501 Foliage Green 502
Nanometers (nm)
Min.
Max. Min.
Max. Min.
Max.
660
38
56
14
30
10
26
680
44
60
18
34
10
26
700
46
66
24
38
12
28
720
48
68
26
42
16
30
740
48
72
30
46
16
30
760
50
74
32
48
18
32
780
54
76
34
48
18
34
800
54
76
34
50
20
36
820
54
76
36
54
22
38
840
56
78
38
54
24
40
860
56
78
40
56
26
42
3.7 Physical requirements. The finished cloth shall conform to the requirements listed
below, in Table VII, when tested as specified in 4.4.3.
TABLE VII. Physical requirements
Characteristic
All Classes
Weight, oz./sq.yd.
Minimum
8.5
Yarns per inch, (minimum)
126
Warp
72
Filling
Breaking strength (pounds), minimum
Warp
225
Filling
225
Tearing strength (pounds), minimum
Warp
9.0
Filling
9.0
Air permeability, (cu.ft./min/sq.ft.)
7.0
3.7.1 Weave. The weave when viewed from the face side shall be a 5-harness sateen.
Testing shall be as specified in 4.4.3.
3.7.2 Width. For government procurements only, the width of the cloth shall be as specified
(see 6.2), and shall be the minimum acceptable width, inclusive of selvages when fly shuttle
looms or shuttleless with tuck-in selvage looms are used. For all other shuttleless looms the
width measurement shall be made between the last warp yarn on each side excluding the
protruding fringe(s).
9
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