The assortment of raw cotton according to their quality is known as cotton grading.

Grading systems of raw cotton fibre:

Egyptian Cotton Grading
Grade	Grade symbol	Grade sequence depending on trash%
Extra fine	EF	Higher grade (0.5%) à lower grade (6.5%)
Fine	F
Good	G
Fully good fair	FGF
Good fair	GF
Fair	F

Indian Cotton Grading
Grade	Grade symbol	Grade sequence depending on trash%
Super choice	SC	Higher grade (1.5%) à lower grade (10.5%)
Choice	C
Superfine	SF
Fine	F
Fully good	FG
Good	G
Fully good fair	FGF

American or Universal Cotton Grading
Grade	Grade symbol	Grade sequence depending on trash%
Middling fair	MF	1.0
Strict good middling	SGM	1.3
Good middling	GM	1.8
Strict middling	SM	2.4
Middling	M	3.1
Strict low middling	SLM	4.2
Low middling	LM	5.5
Strict good ordinary	SGO	7.4
Good ordinary	GO	9.8