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) Test Category Acids (1) (-) Alcohols (1) Biomarkers (2) Hallucinogens (1) Metals/Elements (14) NPS/Designer Drugs (1) Opiates/Opioids (1) Other (1) Pesticides/Insecticides (1) Solvents (3) Volatiles (3) Test Sub-Category Other (1) Test Test Name 4003U Propylene Glycol, Urine