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�N <br /> 3. Instrumentation <br /> Instrument Action Level Action <br /> Photoionizatioa <br /> detector (hNu) _ 5 units* Level C, air purifying respirator (APR) with organic <br /> vapor canister. <br /> Flame ionization <br /> detector (OVA) 5 units* Level C, air purifying respirator (APR) with organic <br /> vapor cartridge. <br /> Benzene 0.5 ppm Level C, Air purifying respirator (APR) with <br /> colorimetric organic vapor cartridge <br /> detector tubes <br /> Hydrogen Sulfide 5 ppm Level C, Air purifying respirator (APR) with <br /> (H2S) colorimetric acid gas cartridge. Leave area. <br /> detector tubes <br /> Oxygen meter a 19.5% oxygen Do not enter area or confined space <br /> Explosimeter > 10% LEL Eliminate all ignition sources and <br /> > 20% LEL reduce levels immediately or leave site <br /> • Method of calculation: Chemical known: V2 x TLV = Level C, Air purifying respirator <br /> (APR) with appropriate canisters <br /> 5 x TLV = Level B, Supplied air respirator <br /> (SAR) or evacuate site <br /> Unknowns: 5 x background or 5 units = Level C, Air <br /> purifying respirator with organic <br /> vapor/dust combination canisters) <br /> 10 x background or 10 units = Level. B, <br /> Supplied air respirator (SAR) or <br /> evacuate site <br /> G FIRST AID EQUIPMIIVT AND PROCEDURES: <br /> 1. First Aid Equipment: <br /> Standard first aid lit (sized for number of individuals on-site). <br /> Portable eye wash (appropriate for number of individuals on-site). <br /> SHSP-92-IIIPEIRO <br /> PAGE 9 <br />