Most feedstock and products in the oil and gas industry are flammable by nature in the presence of oxygen. To prevent explosion hazards, the formation of explosive atmospheres must be avoided at all times. An oxygen free environment must be maintained during storage and offloading. This task is accomplished by inertization or blanketing of the pipes and storage tanks with an inert gas like nitrogen or CO2. SICK’s laser oxygen transmitter minimizes the consumption of the inert gases in an inertization/blanketing loop by monitoring the residual oxygen content with low gas sampling and maintenance requirements.