MIL-DTL-3738L
4.3.3.2 Limits of slubs and knots. Only slubs and knots which exceed the limits shown on
Sears Fabric Defect Scales (see 6.6). "D" or "3-1/2" as applicable for slubs and "C" for knots
shall be scored.
4.3.3.3 Shade match, appearance, and finish examination. A 4-inch by 20-inch swatch shall be
drawn from each roll in the lot. Each swatch shall be examined visually for shade match and
appearance (see 3.4.2) and examined for finish (see 3.7). Any swatch failing to meet the
requirements for shade match, appearance, or finish shall be cause for rejection of the roll from
which it was drawn.
4.3.4 End item testing. The cloth shall be tested for the characteristics listed in Table II, and
shall follow the methods of testing listed in Table II. The physical and chemical values specified
in Section 3 apply to the results of the determinations made on a sample unit for test purposes as
specified in the applicable test methods. The sample unit shall be 4-1/2 continuous yards, full
width, of the finished cloth. The lot shall be unacceptable if one or more sample units fail to
meet any test requirement specified. All test reports shall contain the individual values utilized
in expressing the final result. The sample size (number of sample units) shall be in accordance
with the following:
Lot size (yards)
Sample size (sample units)
800 or less
2
801 up to and including 22,000
3
22,001 and over
5
TABLE II. End item tests
Characteristics
Requirement paragraph
Test method
Wool grade
3.3.1
ASTM D2130 1/
Yarn ply:
Visual 2/
Warp
3.3.2
Visual 2/
Filling
3.3.2
3/
Mothproofing
3.4.1
Colorfastness to:
AATCC 15
Perspiration
3.4.3
AATCC 132
Wet-drycleaning
3.4.3
AATCC 16
Light
3.4.3
AATCC 9
Crocking
3.4.3
7
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