Hydrocarbons, C13-27, solvent-extd. light naphthenic; Baseoil — unspecified; [A complex combination of hydrocarbons obtained by extraction of the aromatics from a light naphthenic distillate having a viscosity of 9.5cSt at 40 °C (104 °F). It consists predominantly of hydrocarbons having carbon numbers predominantly in the range of C13 through C27 and boiling in the range of approximately 240 °C to 400 °C (464 °F to 752 °F).]