Also Called: Unrefined or mildly refined baseoil; [A complex combination of hydrocarbons obtained as a raffinate from a sulfuric acid treating process. It consists of hydrocarbons having carbon numbers predominantly in the range of C15 through C30 and produces a finished oil with a viscosity of less than 100 SUS at 100 °F (19cSt at 40 °C). It contains relatively few normal paraffins.]; Distillates, petroleum, acid treated light naphthenic [Unrefined or mildly refined baseoil];Distillates, petroleum, acid treated light naphthenic;Distillates (petroleum), acid-treated light naphthenic;[A complex combination of hydrocarbons obtained as a raffinate from a sulfuric acid treating process. It consists of hydrocarbons having carbon numbers predominantly in the range of C15 through C30 and produces a finished oil with a viscosity of less than 100 SUS at 100 å¡F (19cSt at 40 å¡C). It contains relatively few normal paraffins.];[A complex combination of hydrocarbons obtained as a raffinate from a sulfuric acid treating process. It co;[A complex combination of hydrocarbons obtained as a raffinate from a sulfuric acid treating process. It consists of hydrocarbons having carbon numbers predominantly in the range of C15 through C30 and produces a finished oil with a viscosity of less than 100 SUS at 100 °F (19cSt at 40 °C). It contains relatively few normal paraffins.];Unrefined or mildly refined base oil (A complex combination of hydro carbons obtained as a raffinate from a sulfuric acid treating process. It consists of hydro carbons having carbon numbers predominantly in the range of C15 through C30, and produces a finished oil with a viscosity of less than 19 10-6 m2.s-1 at 40 °C. It contains relatively few normal paraffins.);Distillates (petroleum), acid-treated light naphthenic, Unrefined or mildly refined baseoil