TSCA Definition 2019: A complex combination of hydrocarbons consisting of approximately 50% toluene. It also contains butenes, pentenes, mixed paraffins, and mixed aromatics including benzene.

TSCA Definition 2019: A complex combination of hydrocarbons produced as waste material from slop oil, sediments, and water. It consists of hydrocarbons having a carbon number predominantly greater than C20 and boiling above approximately 350.degree.C (662.degree.F).

TSCA Definition 2019: A complex combination of hydrocarbons having carbon numbers predominantly in the range of C1 through C3 and boiling in the range of approximately minus 164.degree.C to minus 42.degree.C (-263.degree.F to -44.degree.F).

TSCA Definition 2019: A complex combination of hydrocarbons produced by thermal cracking and absorber operations and by distillation of crude oil. It consists of hydrocarbons having carbon numbers predominantly in the range of C1 through C4 and boiling in the range of approximately minus 164.degree.C to minus 0.5.degree.C (-263.degree.F to 31.degree.F).

TSCA Definition 2019: A complex combination of hydrocarbons obtained by subjecting hydrocarbon gases to a sweetening process to convert mercaptans or to remove acidic impurities. It consists of hydrocarbons having carbon numbers predominantly in the range of C1 through C4 and boiling in the range of approximately -164.degree.C to -0.5.degree.C(-263.degree.F to 31.degree.F).