A-A-52094A
The sample shall then be rinsed in distilled water at 1200 to 1600F and dried at a temperature not exceeding 1800F. The dried sample shall then be conditioned for a minimum of 4 hours prior to evaluation for shade matching or colorfastness.
3.6 Color. The color of the dyed thread shall be as specified in the applicable end item specification or in the contract order. The color shall be natural, bleached, or dyed as specified (see 7.3).
3.7 Visual shade matching. The color and appearance of the finished thread, after removal of finish (see 3.5), shall match the standard sample when viewed using AATCC Evaluation Procedure 9, Option A, with sources simulating artificial daylight D75 illuminant with a color temperature of 7500 + 200 K, with illumination of 100 + 20 foot candles, and shall be a good match to the standard sample under incandescent lamplight at 2856 + 200K.
3.8 Mildew resistant treatment. The thread shall have a mildew resistant treatment when specified in the contract and meet the requirements as specified in Table IV (see 7.3).
3.8.1 Leaching resistance. Specimens to be tested for mildew and rot resistance shall be submerged in a suitable tank containing water at a temperature of 800 to 850F (270 300C) and allowed to remain immersed for a period of 24 hours. Water flow through a tube into a tank is adjusted to ensure a completed change of water not less than three times in 24 hours. The pH and temperature of the water is recorded and included in the report of the results.
3.9 Finishing materials. The finished thread shall have no chemical finishes or treatments other than those commonly used or specified, i.e. water-repellent, etc, on commercial threads which have been demonstrated to have no harmful effects on the fiber, including effects of prolonged storage. No finish or treatment shall be applied for the purpose of increasing breaking strength. There shall be no noticeable wicking of the treatment on the thread to adjacent material when sewn.
3.10 Toxicity. The finished thread shall not present a health hazard and shall show compatibility with prolonged, direct skin contact when tested as specified in 3.10.1. Chemicals recognized by the Environmental Protection Agency (EPA) as human carcinogens shall not be used.
3.10.1 Toxicity test. When required (see 7.4), an acute dermal irritation study and a skin sensitization study shall be conducted on laboratory animals. When the results of the studies indicate the (item) is not a sensitizer or irritant, a Repeat Insult Patch Test shall be performed in accordance with the Modified Draize Procedure. (See 7.1.4) If the toxicity requirement (see
3.10) can be demonstrated with historical use data, toxicity testing may not be required (see 7.3).
3.11 Put-up. Unless otherwise specified, the thread shall be put-up on holders such as commercial spools, cones, or tubes as specified in the contract. The thread shall be wound around the specified holder in one continuous piece, so each turn and layer is free of entanglement. The outside ending of the thread shall be secured to prevent unwinding, loosening, or slippage during handling, shipping, or storage.
5
For Parts Inquires call Parts Hangar, Inc (727) 493-0744
© Copyright 2015 Integrated Publishing, Inc.
A Service Disabled Veteran Owned Small Business