A-A-52106
TABLE I. Cloth requirements (cont’d)
|
Characteristic |
Class 1 |
Class 2 |
Class 3 |
Test method 1/ |
|
Shrinkage or elongation percent (max): |
|
|
|
|
|
Warp |
3.0 |
3.0 |
3.0 |
5580 |
|
Filling |
3.0 |
3.0 |
3.0 |
5580 |
|
|
|
|
|
|
|
Seam efficiency percent (min) |
70 |
70 |
- |
5110 6/ |
/ 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/ The test shall be performed at 325° ± 6°F.
3/ Refers to AATCCC Chromatic Transference Scale rating.
4/ Shall contain no more than that shown by the standard sample or not more than a “slight” trace of labile sulfur as defined in the test method. For 100 percent polyester cloth, this requirement shall not apply.
5/ For 100 percent polyester cloth a 15 percent minus tolerances is permitted.
6/ The needle shall measure 0.044 inch ± 0.001 inch across the blade at the eye. The thread shall be polyester core; cotton, or polyester-covered in accordance with A-A-50199, Ticket No. 50 for the needle and Ticket No. 70 for the looper, or spun polyester in accordance with MIL-T-43624, size 30; 2, 3, or 4 ply for the needle and size 40, 2 or 3 ply for the looper. (Not applicable to 100 percent polyester cloth.)
2.3 Length and put-up. For government procurements only, unless otherwise specified (see 5.1), the cloth shall be furnished in continuous lengths of not less than 40 yards and shall be put-up full width on rolls as specified in 4.1.
3. QUALITY ASSURANCE
3.1 Certification. The contractor shall certify, and maintain substantiating evidence, that the product offered meets the salient characteristics and requirements of this Commercial Item Description, and that the product conforms to the producer’s own drawings, specifications, standards, and quality assurance practices. The Government reserves
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