Cotton, Grades of

American Pima Color and Leaf Grade Cotton

American Pima Grade Standards. Practical forms of the American Pima Cotton Grade Standards are for manual classification of American Pima cotton. There are six (6) of these grade standards representing the predominant range of color and leaf grades found in American Pima cotton. American Pima Cotton Grade Standards are valid for a period of one year (July 1- June 30). Approximate Weight: 5 pounds each.
 
Official Cotton Standards for the Color Grade of American Pima Cotton
  1. Color grade No.

Universal Upland Color and Leaf Grade Cotton Standards

Universal Upland Cotton Grade Standards. Practical forms of the Universal Upland Cotton Grade Standards are for manual classification of American Upland cotton. There are fifteen (15) physical grade standards representing the predominant range of color and seven (7) physical grade standards representing the official leaf grades for American Upland cotton. Universal Upland Cotton Grade Standards are valid for a period of one year (July 1- June 30).

Calibration Cotton Standards

  1. Universal HVI Calibration Cotton Standards are samples from bales of ginned cotton lint with established standard values for length, length uniformity index and strength. These standards are used for calibration of instruments testing Upland cotton varieties. Approximate Net Weight: 5 pounds each.
  1. Extra-Long Staple (ELS) HVI Calibration Cotton Standards are samples from bales of ginned cotton lint with established standard values for length, length uniformity index and strength.