Test Catalog Search Home Test Catalog Search Testing Choices: From the standard to the extraordinary × Search Clear Filter by: Clear all Method(s) (-) Gas Chromatography (GC) (1) Headspace Gas Chromatography (GC) (2) Sample Type (-) Blood (1) Serum or Plasma (1) Test Area Exposure (1) Test Category Acids (1) Alcohols (1) (-) Depressants (1) Other (1) Pesticides/Insecticides (1) Sedative/Hypnotics (2) Solvents (9) Terpenes (2) Volatiles (19) Test Sub-Category Sedative-Hypnotics (1) Test Test Name 4640B Trichloroethanol - Free, Blood