Performing inspection such as Loading or discharging chemcials on to or off of Vessels, barges, shore tanks, trucks and railcars. Quality control : Physically sampling the product and submitting it into a lab for analysis. Calculations : Determine how much product has moved from point A to Point B. Example : A client wants to buy 1,500 Metric Tons of Ethanol and load onto a vessel that will ship it overseas. I will measure, calulate and sample the product in the Shore tank then once it is confirmed the terminal will pump the product onto a vessel. Once the vessel has completed loading 1,500 MT I would then board the vessel and measure, calulate and sample the product in order to make sure the client and vessel recieved the correct amount.