Cotton

1. Upper Half Mean Length (in inches)
A. #1 Upland Virgin Staple 0.70 1.30
B. Gin Motes 0.50 0.80
C. Comber <0.50
D. First Cut linters 0.25- 0.50
2. Fiber Diameter
A. Micronaire 2.0 7.0
B. Approximate Denier 0.7 2.5
3. Elastic Recovery (by percent)
A. At 2 % Extension 74%
B. At 5% Extension 45%
4. Breaking Elongation (dry) 3-9.5
5. Tensile Strength (g per tex/g per denier)
A. Dry 27 44 / 3.0 4.9
B. Wet 28 57 / 3.3 6.4
6. Moisture Regain at Standard Conditions 7%
7. Water Absorbing Capacity (USP method) >24 grams of water per gram of fiber
8. Density (g/cm3) 1.54
9. Degree of Polymerization 9,000 15,000
10. Crystallinity by X-ray Diffraction (average) 73%
11. Color (Whiteness Index) 90 100