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) (-) Gas Chromatography/Mass Spectrometry (GC/MS) (1) Sample Type Blood (1) Urine (1) Test Area Exposure (2) Test Category (-) Biomarkers (1) (-) Gases (1) Test Sub-Category (-) Hydrocarbons (2) Other (1) Test Test Name 0094U 2,5-Hexanedione, Urine 2745B Methane, Blood