ASTM D2269 Test Method for Evaluation of White Mineral Oils by Ultraviolet Absorption
4. Summary of Test Method
4.1 A sample of oil is extracted with dimethyl sulfoxide and the ultraviolet absorbance of the extract is determined in the range from 260 to 350 nm. The absorbance is compared with that of a naphthalene standard.
5. Significance and Use
5.1 The ultraviolet absorption of white mineral oils is used to determine their suitability for use in food, drug, and cosmetic applications.
5.2 The U.S. Pharmacopeia and the National Formulary specifications for mineral oil require the measurement of ultraviolet absorption.
