A-A-52085
2.2 Physical requirements. The finished cloth shall conform to the requirements listed in table I.
TABLE I. Physical Requirements.
|
Characteristic |
Type I |
Type II |
Test method |
||
|
Class 1 |
Class 2 |
Class 3 |
Class 3 |
||
|
Colorfastness to |
|
||||
|
Light |
- |
- |
Good |
Good |
5660 |
|
Perspiration |
- |
- |
Good |
Good |
5680 |
|
Laundering |
- |
- |
Good |
Good |
5610 |
|
Wet drycleaning |
- |
- |
Good |
Good |
5622 |
|
Crocking (min) |
- |
- |
3.5 2/ |
3.5 2/ |
5651 |
|
|
|
|
|
|
|
|
Weight, oz./sq.yd. (min) |
7.0 |
7.0 |
6.5 |
6.0 |
5041 |
|
|
|||||
|
Yarns per inch (min): |
|
||||
|
Warp |
72 |
74 |
74 |
74 |
5050 |
|
Filling |
60 |
58 |
56 |
44 |
5050 |
|
|
|||||
|
Breaking strength, lbs (min): |
|
||||
|
Warp |
116 |
105 |
105 |
90 |
5100 |
|
Filling |
82 |
75 |
70 |
55 |
5100 |
|
|
|||||
|
Shrinkage, percent (max): |
|
||||
|
Warp |
- |
2.0 |
2.0 |
2.0 |
5550 |
|
Filling |
- |
2.0 |
2.0 |
2.0 |
5550 |
|
|
|||||
|
Nonfibrous content, 3/ percent max |
12.0 |
5.0 |
2.0 |
2.0 |
2611 |
|
|
|||||
|
Labile sulfur content |
- |
- |
4/ |
4/ |
2020 |
|
pH |
5/ |
5/ |
5/ |
5/ |
2811 |
1/ The test methods indicated, from FED-STD-191 Textile Test Methods, have been found acceptable to determine if the cloth meets the stated requirements. If the government requires proof that the cloth meets the stated requirements, the test methods indicated shall be used.
2/ Refers to AATCC Chromatic Transference Scale Rating.
3/ Nonfibrous material consists of the starch and protein content including chloroform-soluble and water-soluble material present in the finished cloth.
4/ Equal to standard sample or shall show no more than a “slight” trace.
5/ No less than 5.5 nor more than 8.5.
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