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Revised: 02/03/2023 3 <br />Job Steps Hazards Actions to Eliminate or Minimize Hazards RAC <br />Use of a Diaphragm Pump to Transfer Liquid <br />4. Degas Tank and Wash - Fire/Explosion <br />- High Pressure Spray <br />- Inadequate Tools or Equipment <br />1. Make sure Vacuum truck exhaust is connected to the <br />degasser and running and ready to accept volatile gas vapors, <br />connect hose from degasser unit into UST. Activate the valve to <br />degasser and begin tank degassing. Control tank vapors until an <br />LEL of less than 10% is achieved. Never attempt to enter tank, <br />do not perform any Hot Work on or near tank. <br />2. During tank wash keep a tight grip on wash hose or maintain <br />control of the spray gun if using a pressure washer, do not start <br />washing until sprayer is pointed inside the tank, turn sprayer off <br />before removing the wand. <br />3. Inspect all equipment prior to use and make sure everything <br />is satisfactory. Do not use broken or compromised equipment. <br />H <br />5. Perforate Tank with <br />Pneumatic Shear <br />- Fire/Explosion <br />- High Pressure Air <br />- Bodily Injury from Sharp Edges <br />1. Verify that each tank is certified "clean" prior to shearing any <br />opening into the top. <br />2. Always wear safety goggles and face shield with air tools, use <br />the right size hose and fittings, make sure all connections are <br />tight and will not come loose under pressure, use whip checks <br />on air hoses, turn off the air pressure when the system is not <br />being used or when changing pneumatic tool and attachments, <br />bleed off air by slowly opening air valve to atmosphere, do not <br />put your hands/face or body in the line-of-fire anywhere that air <br />discharge occurs. <br />3. Do not place hands or body where sharp edges or burrs are <br />created from shear. <br />M <br />NC-25-1137 Tiwana & Sons <br />1210 East Hammer Lane, Stockton, CA 95210