Lower Explosive Limit - correct answer ✔✔LEL
3-15 - correct answer ✔✔Test Pit Depths (Meters)
undisturbed - correct answer ✔✔split spoon (hollow)
disturbed - correct answer ✔✔solid stem auger
Photo Ionization Detector (PID) - correct answer ✔✔Measures gas concentrations of volatile
organic compounds
Petroflag - correct answer ✔✔Test kit used to measure non-volatile hydrocarbons based on
turbidity
quantab - correct answer ✔✔measures liquid phase concentrations of salt
X-ray fluorescence (XRF) - correct answer ✔✔measures solid-phase concentrations of metals
microtox - correct answer ✔✔Measures liquid-phase toxicity based on light emitted by
fluorescent bacteria
immunoassay - correct answer ✔✔measures liquid phase toxicity based on antibody-antigen
reactions
United Soil Classification System - correct answer ✔✔USCS