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FEB 05 '99 14:45 FR CONTAINMENT SOLUTIONS814 542 5020 TO 9-15108958426 P.13i20 <br /> section _S_af m <br /> bulletin 3 <br /> date _ 2lLf91 <br /> page <br /> 11. Final Exit • <br /> Remove all equipment. Double check to ensure that all caps used to <br /> plug pipes are removed. Sign Entry Permit and include with the field <br /> trip report documents. <br /> Frocedcire for external Work <br /> If the repair work involves cutting into a tank or grinding adj aceiat to a <br /> g shell, wall, prior to any work the <br /> - tank must be ventilated such that the vapor level is less than 10% LEL <br /> initially and remains lower than 20% of the LEL during work. Tanks that <br /> have been in service are to be continuously monitored to ensure these <br /> conditions are met. <br /> The above requirements must be met for field installation of fittings. <br /> a:saf3 <br /> f <br />