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) Sample Type (-) Blood (1) Serum or Plasma (1) Test Area (-) Exposure (1) Therapeutics (1) Test Category Depressants (1) Test Sub-Category Cyanide (1) Organochlorides (2) Other (7) (-) Sedative-Hypnotics (1) Toxic Elements (5) Test Test Name 4640B Trichloroethanol - Free, Blood