|
TEST
|
METHOD
|
RANGE
|
|
Specific gravity
|
USP
|
0.916-0.922
|
|
Refractive index
|
USP
|
1.465-1.475
|
|
Heavy metals, Method II
|
USP
|
0.001% max
|
|
Iodine value
|
USP
|
120 - 141
|
|
Free fatty acids
|
USP
|
< 2.5 mL of 0.02 N NaOH
|
|
Saponification value
|
USP
|
180 - 200
|
|
Unsaponifiable matter
|
USP
|
< 1.0%
|
|
Cottonseed oil
|
USP
|
passes
|
|
Peroxide
|
USP
|
10.0 max
|
|
Fatty acid composition
|
USP
|
|
|
|
C16:0
|
7 - 14
|
|
|
C18:0
|
1 - 6
|
|
|
C18:1
|
19 - 30
|
|
|
C18:2
|
44 - 62
|
|
|
C18:3
|
4 - 11
|
|
Color Gardner
|
AOCS Td la-64
|
4 max
|
|
Appearance
|
Greenish-yellow, bright & clear oily liquid
|
|
|
Flavor and Odor
|
Bland, almost odorless
|
|
|
Typical peroxide value
|
USP 26
|
< 1.0 meq/kg
|
Because of natural variations in oilseed crops, chemical and physical constants cannot be guaranteed at all times. However, oil sold as USP is guaranteed to meet the USP monograph. |
