A-A-55126B
TABLE II - Physical requirements
Hook
Loop
Characteristic
Type I
Type II
Type III
Type IV
All
(Class 4
Classes
only)
Thickness, inch (min.)
0.050
0.050
0.04
0.04
0.095
Length Dimensional
Stability, % (max.)
3.0
3.0
3.0
-
.0
Autoclave (Thermal) Length
Shrinkage, % (max.) 1/
-
-
-
3.0
-
1/ The fastener tape shall not exhibit any curling after autoclaving.
3.4 Thermal Stability. The class 2, hook and loop fastener tapes shall not melt, drip, separate
or ignite when tested in accordance with the Thermal Stability Test cited under NFPA 1975 (see
7.1).
3.5 Colors. The color of the hook and loop fastener tape shall as be specified in the contract or
purchase order and shall meet the requirements listed below.
3.5.1 Visual shade matching. The color and appearance of the cloth shall match the standard
sample when viewed using the AATCC Evaluation Procedure 9, Option A, with sources
simulating artificial daylight D75 Illuminant with a color temperature of 7500 K + 200 with
illumination of 100 + 20 foot candles, and shall be a good match to the standard sample under
incandescent lamplight at 2856 K + 200.
3.5.2 Colorfastness. The finished hook and loop fastener tapes shall conform to the
colorfastness requirements listed in Table III when tested as specified in Table VII. Colorfastness
requirements shall not apply to the Type III and IV hook fastener tapes.
TABLE III - Colorfastness requirements
Laundering Light (40 hrs or Dry Cleaning
Crocking
Colors Evaluation
1/ 2/ 3/
170 KJ) 1/ 3/
2/ 4/
5/
(min.)
(min.)
(min.)
(min.)
Universal Camouflage shades:
Desert Sand 503
Urban Gray 505
Foliage Green 504
Type I and Type II
Class 1 and 4
2-3
4-5
4-5
4.0
(5 cycles)
All other colors:
All Types and Classes
4
-
3.5
3.5
(3 cycles)
1/ Rated using the AATCC Evaluation Procedure 1, Gray Scale for Color Change.
2/ Rated using the AATCC Evaluation Procedure 2, Gray Scale for Staining.
5
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