ASTM D565 Standard Test Method for Carbonizable Substances in White Mineral Oil
3. Summary of Test Method
3.1 The mineral oil is treated with concentrated sulfuric acid (H2SO4) under prescribed conditions and the resulting color is compared with a reference standard to determine whether it passes or fails the test.
4. Significance and Use
4.1 This test method is a means for ascertaining whether pharmaceutical mineral oil conforms to the standards of the United States Pharmacopeia, the National Formulary, and the Food and Drug Administration.
