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6• Cap openings on all tanks before removing_, from site. <br /> a) Nitrogen - tank must be capped to maintain nitrogen <br /> blanket. <br /> b) Carbon dioxide gas - tank must be ca d to maintain a <br /> blanket. , . p. :g., .... . ._,,.f� g�e <br /> • . .c) The use of dry ice requires ave ole• 'for <br /> relief. _.�? c .. . 1 ,. .,, press ���:v;rs:: <br /> 1) l Vent cap will have 1/8 inch ng ` <br /> ' • openi .. on top.'' "�;,. :�. <br /> • Empty underground tanks, if not properly cleaned, are <br /> considered hazardous waste. Requirements for hadlinQ• <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 di <br /> Xected <br /> upward and all caps in place. <br /> Definition; <br /> LEL Oxygen concentration in air <br /> Lower explosive limit in air. <br /> UEL - Upper explosive limit in air. <br /> prod , � I LrT1-- <br /> Gasoline 1.3 <br /> Diesel 8.2 <br /> _ Waste Oil 0. 6 7.5 <br /> Methanol 9. 0 N/A <br /> Comp.- 'Nat. Gas 6. 0 36.5 <br /> 3 .8bui! <br /> Propane (LPG) 17. 0 <br /> Liquid Asphalt 9. 0 9.5 <br /> . N/A ; <br />