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 Drugs of Abuse (4) (-) Exposure (1) Test Category Acids (4) Alcohols (11) Biomarkers (5) (-) Depressants (1) Gases (1) Industrial/Environmental Toxins (2) Metals/Elements (2) Other (7) Perfluorinated Compounds (1) Pesticides/Insecticides (4) Solvents (31) Terpenes (3) Volatiles (54) Test Sub-Category Sedative-Hypnotics (1) Test Test Name 4640B Trichloroethanol - Free, Blood