MIL-DTL-21115L
3.5.3 Colorfastness (all types and classes). The finished cloth shall conform to the
colorfastness requirements in below in Table I when tested as specified in 4.3.4.
TABLE I. Colorfastness requirements (all types and classes)
Perspiration
Wet Dry-cleaning
(acid & alka-
Light (40 hrs
or 170 KJ) 2/
(1 cycle) 1/
line) 1/
Crocking 3/
(min.)
(min.)
(min.)
(min.)
Colors Evaluation
All colors
3-4
3-4
3-4
All colors except Black 439
and Blue 1083
3.5
Black 439 and Blue 1083
3.0
1/ Rated using the AATCC Gray Scale for Color Change and AATCC Gray Scale for Staining.
2/ Rated using the AATCC Gray Scale for Color Change.
3/ Rated using the AATCC 9-Step Chromatic Transference Scale.
3.6 Physical requirements. The finished cloth shall conform to the requirements listed
below, in Table IIa. and b., when tested as specified in 4.3.4.
TABLE IIa. Physical requirements (Type I)
Characteristic
Class 1
Class 2
Weight, oz./sq.yd.
6.75 (+ 0.5)
5.5 (min)
Yarns per inch, (min.)
Warp
50
48
Filling
46
46
Breaking strength, lbs., (min.)
Warp
55
50
Filling
50
40
Shrinkage percent, (max.)
Warp
4.0
4.0
Filling
3.0
3.0
Weave
Plain
Plain
6
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business