ASTM D1541 Test Method for Total Iodine Value of Drying Oils and Their Derivatives
4. Significance and Use
4.1 This test method measures the total amount of unsaturation including conjugated unsaturation by addition of bromine in a catalyzed bromine solution to the double bonds. The amount of bromine absorbed is determined by back titration of the excess bromine, and then compared to a blank determination. This test method is preferred over Test Method D1959 for products containing conjugated unsaturation.
