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Characteristics: Corrosive { } ignitible ( X } Toxic { } <br /> Reactive ( ) Volatile ( X } Radioactive ( } Biological Agent { } Toxicity ( } <br /> Chemical name TLV/PEL 1DLH <br /> Benzene 0.5 mg/cubic meter 3000 ppm <br /> Site monitoring equipment (include calibration standards): <br /> Organic Vapor Analyzer, Calibrated to 500 PPM Hexane and Draeger Tubes. <br /> Heat stress conditions: Yes ( } No ( X 1 <br /> Dust monitoring: Yes { ) No ( X) <br /> Air monitoring protocol: Monitor at the breathing zone next to the person closet to the potential <br /> contamination. <br /> Conditions for suspension of operations: 100 ppm total hydrocarbons in ambient air. <br /> 3.0 PERSONAL PROTECTION <br /> Level of protection planned: Level D personal protection equipment (PPE) includes coverall, (Dry) <br /> leather/(Wet) Neoprene steel toe and shank boots, (Wet/Dry) eye protection, hard hat, and nitrile <br /> gloves. <br /> Conditions to upgrade to level C: 100 ppm total hydrocarbons in ambient air. <br /> Level C contingency equipment: Level C (PPE) includes (Dry/Wet) tyvek suits with over-boots <br /> attached to the tyvek suits with duct tape, nitrile gloves, (Dry) leather/(Wet) neoprene boots with <br /> steel toe and shank, (Dry/Wet) eye protection, hard hat, and a full-face air-purifying respirator <br /> with Scott 642-OA-H cartridge filter or equivalent. <br /> Instruction for disposal of contaminated equipment: in approved containers only. <br /> - 4 - <br />