MIL-PRF-44103D
5/ Scale rating.
6/ There shall be no visible loose fibers in the abraded area of test specimen for the abrasion
test and prior to hydrostatic resistance testing.
3.4. Opacity, (grades A and B). When grade A cloth is specified, the cloth shall transmit not
more than 0.030 watts per square cm per steradian of combined visible and nonvisible light
and not more than 0.020 foot-lamberts of visible light. When grade B cloth is specified, the
cloth shall not transmit more than 0.020 foot-lamberts of visible light.
3.5 Color. The color of the face side of the cloth shall be Camouflage Green 483 for class 1
and Desert Tan 459 for class 2. For both classes, the color of the back side of the finished
cloth shall be off-white, gray, or black or any other suitable color which will allow the face
side of the cloth to be easily distinguished from the back. If color of the face and back sides
of the cloth is the same, the face side shall be identified by applying a stamping on that side of
the cloth with the word "Face" on each end of each individual piece. The color of the face
side of the cloth shall be Pale Green shade no. 34554 of FED-STD-595 for class 3 and Gray
shade no. 36231 of FED-STD-595 for class 4. For class 3 and 4 cloth, the back side of the
cloth shall be black.
3.6. Spectral reflectance. The spectral reflectance of the face side of the cloth shall meet the
requirements specified in Table II for classes 1 and 2.
TABLE II. Spectral reflectance requirements
Reflectance, %
Class 1
Class 2
Wavelengths Nanometers
Min
Max
Min
Max
600
5
12
--
--
620
5
12
--
--
640
5
12
--
--
660
5
13
--
--
680
6
15
45
65
700
9
21
45
65
720
15
30
45
65
760
32
50
45
65
780
38
56
45
65
800
41
60
45
65
820
43
63
45
65
840
45
65
45
65
860
46
66
45
65
3.7 Toxicity assessment. The cloth shall not be toxic to the skin, eyes or epidermis when
used as intended (see 4.4.17).
3.8 Mildew resistance. The cloth shall be mildew resistant. If plastizers are used they should
be restricted to phosphate or pthalate esters for the purpose of providing mildew resistance
(see 4.4.18).
3.9 Fiber identification. Each roll shall be labeled and ticketed for fiber content in accordance
with the Rules and Regulations Under the Textile Fiber Products Identification Act.
5
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