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� C <br /> SG <br /> 88168E <br /> D <br /> May 1989 <br /> concentrations measured in the breathing zone exceed 1000 ppm above <br /> If PID <br /> background the site area will be evacuated immediately. Reentry will not be <br /> ! <br /> are below 1000 ppm or Level B equipment is provided. <br /> allowed until concentrations <br /> rating the PID to avoid monitoring vehicle exhaust. <br /> Care should be taken in ope <br /> PERSONNEL PROTECTIVE EQUIP?IENT he <br /> 10.0 <br /> that t <br /> Level D equipment will be required atbacksite <br /> round� all <br /> Level Dsequipment <br /> PID measured concentration are below 5 ppm above g <br /> i <br /> includes: <br /> Hard hats t <br /> coveralls <br /> Rubber safety boots <br /> Safety glasses or goggles <br /> i <br /> Standard work gloves <br /> I <br /> ua1 or exceed 5 ppm above <br /> If organic vapor concentrations eq on 11) will don <br /> background all personnel in the contamination zone tilsorganicivapor Concentra- <br /> Level C equipment and remain in Level C equipment <br /> tions <br /> are reduced to below 5 ppm above background. Level C equipment includes: <br /> Level D equipment plus: <br /> Half-face respirator equipped with combination organic <br /> vapor/dust cartridges <br /> _ Tyvek suits i <br /> Neoprene or nitrile gloves (with latex liner gloves) <br /> t <br /> i <br /> U. 5uD will provide Level C personnel protective egtj'pment for its own <br /> representatives. if Level C equipment is required, only p <br /> ers�nnel equipped with <br /> which includes <br /> ` Level C equipment grill be-allowed-to-enter—the contaminate zone, �� <br />