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FEB 05 °99 14:44 FR CONTAINMENT SOLUTIONS814 542 5020 TO 9-15108958426 P.12/20 <br /> section Safety <br /> bulletin 3 <br /> date 2ZJZ21 <br /> page 5 0£ 5 <br /> 8. Continuous Monitoring <br /> Vapor level and C2 level must be monitored continuously, either through <br /> the entry hole or down the exhauster with the probe (at least 12" below <br /> the exhauster into the fill, pipe) . Readings above 20% LEL or less than <br /> 19.5% 02 require work to cease, and technician to exit the tank, and an <br /> investigation as to the source with subsequent correction. <br /> 9. Inspection <br /> data on appropriate sheet. <br /> 10. Re e <br /> If an agreement is reached and the tank is to be repaired, proceed as <br /> follows: <br /> A. The tank must be mechanically ventilated at all times. <br /> B. Complete the Confined Space Entry Permit and post at each tank <br /> entry hole. (Note: A neer Confined Space Entry permit is required <br /> for each day's entry.) <br /> C. Instruct the safety observer of his duties And emergency <br /> procedures. <br /> D. A safety harness with lifelines is required for hot tank entry. <br /> E. Use of an air-supplied mask and Egress air cylinder required unless <br /> absolutely certain tank never had proi3uct in. it. If an air-fed <br /> ma k is not used: <br /> 1) During grinding, goggles or a hood and an approved organic <br /> respirator are to be worn. <br /> 2) During iayup work, or at a= time resin is in the tank, goggles <br /> and an approved organic respirator or a fresh air mask must be <br /> worn. <br />