ASTM D1957 – Standard Test Method for Hydroxyl Value of Fatty Oils and Acids (Withdrawn 2007)
Description:
Scope
1.1 This test method covers the determination of the hydroxyl content of castor oil, dehydrated castor oil, and their derivatives. This test method may also be used for other fatty products such as fatty alcohols, mono- and diglycerides, and hydroxystearic acid, but the precision will not necessarily be as indicated.
ASTM D1903