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) Urine (1) Test Area (-) Exposure (1) Therapeutics (2) Test Category Acids (1) (-) Alcohols (1) Biomarkers (3) Depressants (1) Metals/Elements (12) Other (3) Pesticides/Insecticides (1) Solvents (3) Terpenes (1) Volatiles (4) Test Sub-Category Other (1) Test Test Name 4003B Propylene Glycol, Blood