A-A-55126B
TABLE I - Physical requirements (Continued)
Width Hook/Loop Fastener Tape
4
2
1-1/2
1
3/4
5/8
(inch)
Characteristic
Shear strength, lbs./sq. inch (min.)
After 3 Launderings
After 1drycleaning 1/
Hook
Type I
Class 1 and 4
5.0
5.0
5.0
5.0
4.7
4.3
Class 2
-
10.0
10.0
10.0
6.7
5.0
Type II
Class 1 and 4
10.0
10.0
10.0
10.0
6.7
4.7
Class 3 and 5
-
16.0
-
16.0
-
-
Type III
Class 4
30.0
30.0
30.0
30.0
22.5
18.7
Type IV -After Autoclaving
2/
2/
2/
2/
2/
2/
Class 4
Peel strength, lbs./inch (min.)
After 3 launderings
After 1 drycleaning 1/
Hook Type I
0.5
0.5
0.5
0.5
0.5
0.5
Class 1 and 4
-
0.5
0.5
0.5
0.5
0.5
Class 2
Type II
Class 1
1.0
1.0
1.0
1.0
1.0
1.0
Class 3 and 5
-
0.5
-
0.5
-
-
Type III and IV
0.8
0.8
0.8
0.8
0.8
0.8
Class 4
Stitch Tear Strength, lbs. (min.)
Hook Type I
Class 1 and 4
3.5
3.5
3.5
3.5
3.5
3.5
Class 2
7.0
7.0
7.0
7.0
7.0
7.0
Type II
Class 1 and 4
3.5
3.5
3.5
3.5
3.5
3.5
Class 3 and 5
2.0
2.0
2.0
2.0
2.0
2.0
Type III and IV
Class 4
2.5
2.5
2.5
2.5
2.5
2.5
6.0
6.0
6.0
6.0
6.0
6.0
Loop
Class 1 and 4
Class 2
7.0
7.0
7.0
7.0
7.0
7.0
Class 3 and 5
3.5
3.5
3.5
3.5
3.5
3.5
1/ Dry cleaning only required if specified in the contract.
2/ 90% of original shear strength.
4
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