A-A-52094 Thread, CottonThis commercial item description covers the requirements for cotton thread used for sewing various cloth, clothing, and equipage items.

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A-A-52094A

Table IV. End item testing

Characteristic	Requirement	Test method
Tex (Ticket) Size Ply Length/lb. Breaking Strength Initial	Table I, II, or III Table I,II, or III Table I, II, or III Table I, II, or III	ASTM D 3823 Visual ASTM D 1907, 1/ ASTM D 2256, 2/
Twist direction (Final)	z	ASTM D 1423
Fiber identification	Cotton	ASTM D276 or AATCC 20
Mildew resistance 3/ After leaching	75% of initial breaking strength 75% of initial breaking strength	AATCC 30, Test 1, 4/ ASTM D204 2/ Para. 3.8.1, AATCC 30, Test 1, 4/, ASTM D204 2/
Colorfastness to: (Minimum)5/ Laundering (after 3 cycles) Light (after 40 hrs or 170 kJ) Wet dry cleaning Perspiration Weathering (after 80 hrs.)	(see paragraph 3.5) 3-4 3-4 3-4 3-4 3-4	AATCC 61, 3A, 6/, 7, 8/, 9 AATCC 16, Opt 1 or 3, 6/, AATCC 132, 6/, 9/ AATCC 15, 6/, 9/ AATCC 169, 6/
Visual shade matching 5/	Paragraph 3.7	AATCC Evaluation Procedure 9, Option A , see 3.7

1/ In case of dispute, the length per pound of thread may be determined on the thread after

removal of finish.

2/ Five determinations shall be made on the sample unit. Testing speed shall be 12+0.5 in/min and a 10 inch guage length shall be used.

3/ When the contract specifies mildew resistance is required (see 3.8).

4/ A minimum of 5 specimens shall be tested. The soil shall be made of an equal blend of good topsoil, well rotted and shredded manure and coarse sand. Samples shall be exposed for 12 weeks .

5/ Testing shall be done after the finish is removed as specified in 3.5.

6/ AATCC Evaluation Procedure 1, Gray Scale for Color Change.

7 The specimen must be dried after each of the 3 laundering cycles.

8/ On the color transfer cloth evaluation, only the stain on the cotton fibers of the color transfer cloth shall be evaluated.

9/ AATCC Evaluation Procedure 2, Gray Scale for Staining.

3.4 Labile Sulfur. The use of dyes and compounds containing elementary sulfur capable of oxidation to sulfuric acid shall not be permitted.

3.5 Finish removal procedure. Before evaluation for shade matching and testing for colorfastness, except for colorfastness to wet dry cleaning, the thread shall be wet dry cleaned in accordance with AATCC-132. Excess solvent shall be removed by centrifuging or wringing.