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0 0 <br />5. All tanks and connecting lines shall be purged of the product and rinsate material. <br />Rinsate material shall be handled as a hazardous waste: <br />a) Requirements for dry ice use: <br />1) 15 lbs. per 1,000 gallon capacity for diesel tanks <br />2) 30 lbs. per 1,000 gallon capacity for gasoline tanks <br />6. Cap openings on all tanks before removing tanks from site. <br />a) Nitrogen - tank must be rapped to maintain nitrogen blanket <br />b) Carbon dioxide gas - tank must be capped to maintain gas blanket <br />C) The use of dry ice requires a vent hole for pressure relief. <br />1) Vent cap will have 1/8 inch opening on top. <br />7) Empty underground tanks, if not properly cleaned, are considered hazardous waste. <br />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 leaving the site. <br />8) Equipment to hoist tank must be rated for the calculated 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 upward and all caps in <br />place. <br />Definition: <br />0 — Oxygen concentration in air <br />LEL Lower explosion limit in air <br />UEL = Upper explosion limit in air <br />Gasoline <br />1.3 <br />8.2 <br />Diesel <br />0.6 <br />7.5 <br />Waste Oil <br />9.0 <br />N/A <br />Methanol <br />6.0 <br />36.5 <br />Comp. Nat Gas <br />3.8 <br />17.0 <br />Propane (LPG) <br />2.4 <br />9.5 <br />Liquid Asphalt <br />9.0 <br />N/A <br />