Commercial grade castor oil is one of the standard & most common grades of castor oil, used for many industrial applications. It is also known as the industrial grade castor oil.
Pale pressed grade castor oil is a form of castor oil that is characteristically clear and free from suspended matter. It is light in color and low in acidity, it is obtained from the first pressing of the castor seed.
B.s.s. Castor oil f.s.g. Castor oil is castor oil bleached to british standard specifications. It is a yellow viscous liquid free from suspended matter and insoluble in water. First special grade castor oil is produced by refining commercial grade castor oil by undergoing bleaching and filtering process.