3. Terminology 
3.1 Definitions: 
3.1.1 biodiesel, n—a fuel comprised of mono-alkyl esters of long chain fatty acids derived from vegetable oils or animal fats, designated B100. 
3.1.2 biodiesel blends, n—a blend of biodiesel fuel with petroleum-based diesel fuel.
 3.1.3 dynamic, adj—in petroleum products—in petroleum product flash point test methods—the condition where the vapor above the test specimen and the test specimen are not in temperature equilibrium at the time that the ignition source is applied. 
3.1.3.1 Discussion—This is primarily caused by the heating of the test specimen at the constant prescribed rate with the vapor temperature lagging behind the test specimen temperature. 
3.1.4 equilibrium, n— in petroleum products—in petroleum product flash point test methods—the condition where the vapor above the test specimen and the test specimen are at the same temperature at the time the ignition source is applied.
 3.1.4.1 Discussion—This condition may not be fully achieved in practice, since the temperature may not be uniform throughout the test specimen, and the test cover and shutter on the apparatus can be cooler. 
3.1.5 flash point, n— in petroleum products, the lowest temperature corrected to a barometric pressure of 101.3 kPa (760 mm Hg), at which application of an ignition source causes the vapors of a specimen of the sample to ignite under specified conditions of test.