[′trü ′bȯil·iŋ ¦pȯint ə‚nal·ə·səs] (chemical engineering) A standard laboratory technique used to predict the refining qualities of crude petroleum; gives distillation cuts for gasoline, kerosine, distillate (diesel) fuel, cracking, and lube distillate stocks. Also known as true-boiling-point distillation.