MIL-DTL-44436B
TABLE IA. Colorfastness requirements (Class 9 and 10).
Colors Evaluation
Laundering
Light (40 hrs or
Crocking
Perspiration
(4 cycles) 1/
170 kJ) 2/
3/
(acid & alkaline)
(minimum)
(minimum)
(minimum)
1/ (minimum)
All colors
3-4
--
3-4
3.5
Dk. Green 528, Brown 529,
--
3-4
--
--
Dark Brown530
Cream 524, Tan 525, Pale
--
3
--
--
Green 526, Olive 527
1/ Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change and AATCC
Evaluation Procedure 2, Gray Scale for Staining.
2/ Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change
3/ Rated using the AATCC Evaluation Procedure 8, AATCC 9-Step Chromatic Transference
Scale
3.6 Pattern execution (Class 1, 2, 3, 6, 7, 8, 9 and 10). The pattern on the printed finished
cloth(s) shall reproduce the standard sample in respect to design, colors and registration of the
respective areas. The pattern repeat of Class 1 and 2 shall be 27.25 (+1.25, -2.50) inches in the
warp direction. The pattern repeat of Class 3 shall be 16.75 (+1.25, -1.75) inches in the warp
direction. The pattern repeat of Class 6, 7 and 8 shall be 36.00 (+1.25, -2.50) inches in the warp
direction. The pattern repeat of Classes 9 and 10 shall be 25.255 (+1.25, -2.50) inches in the
warp direction. The various areas of the pattern shall be properly registered in relation to each
other and shall present definite sharp demarcations with a minimum of feathering or spew. Each
pattern area shall show solid coverage; skitteriness exceeding that shown on the standard sample
in any of the printed areas will not be acceptable. When the standard sample is not referenced
for pattern execution, a pattern drawing shall be provided and the pattern for Class 1 and 2 shall
match that of Drawing 2-1-1516; Class 3 shall match that of Drawing 2-1-2240 and Class 6, 7
and 8 shall match that of Drawing 2-1-2519 (see 2.2.2, 6.2, and 6.4).
3.7 Spectral reflectance.
3.7.1 Class 1 and 2, Woodland Camouflage. The reflectance values shall conform to the
requirements listed below, in Table II, when tested as specified in 4.4.4.
TABLE II. Spectral reflectance requirements, Class 1 and 2.
Reflectance values (percent)
Dark Green 355
and Brown 356
Wavelength,
Light Green 354
Black 357
Max. Min.
Max. Min.
Nanometers (nm)
Min.
Max.
600
8
18
3
9
-
10
620
8
18
3
9
-
10
640
8
18
3
9
-
10
660
8
18
3
12
-
10
680
10
22
3
14
-
10
7
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