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Me <br /> z <br /> ^2_ <br /> 6, cap openings on all tanks before removing tanks Lrom site. <br /> a) Nitrogen -- tank must be capped to maintain nitrogen <br /> blanket. to maintain gas <br /> b) Carbon dioxide gas - tank must be capped <br /> blanket. <br /> C) The use of dry .ice requires a vent hole for pressure <br /> relief". <br /> 1) Vent cap will have 1/8 inch opening on tap. <br /> 7. Empty underground tanks, if not properly cleaned, are <br /> considered hazardous waste. Requirements for handling: <br /> a) Must be hauled to a certified hazardous waste site. <br /> b) Truck must be certified to haul hazardous waste. <br /> c) Must be able to present a hazardous waste manifest before <br /> leaving the site. <br /> 8. Equipment to hoist tank must be rated for the calculated <br /> load: <br /> a) Equipment must not be strained. <br /> b) Tanks are not to be dragged. <br /> Note: Job will be halted if these criteria are not met. <br /> c) Load tank on carrier with pressure relief hole directed <br /> upward and all caps in place. <br /> Defi� nition- <br /> 0 = oxygen concentration in air <br /> LEL = Lower explosive limit in air. <br /> UEL = Upper explosive limit in air. <br /> L$7 _LEL ;$) _U EI <br /> Product - <br /> Gasoline 1.3 8.2o.6 7.5 <br /> Diesel <br /> Waste oil 9.0 N/A <br /> 36 <br /> Methanol 6. .5 <br /> Camp. Nat. Gas 3.88 1 177.0 <br /> Propane--(-LPG) ...._..._ 9.5 <br /> Liquid Asphalt 9.0 <br />