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• Personal Protective Equipment <br /> Management Program 2.15 <br /> • sites at which sealed drums of unknown materials must be opened; <br /> • total atmospheric readings on the Photoionization Detector (PID), Flame Ionization Detector <br /> (FID), and similar instruments indicate 500 to 1,000 ppm of unidentified substances; and <br /> • extremely hazardous substances (e.g., cyanide compounds, concentrated pesticides, Department <br /> of Transportation Poison "A" materials, suspected carcinogens and infectious substances) are <br /> known or suspected to be present and skin contact is possible. <br /> The following items constitute Level A protection: <br /> • open circuit, pressure-demand self-contained breathing apparatus (SCBA); <br /> • totally encapsulated suit; <br /> • gloves, inner(surgical type); <br /> • gloves, outer; <br /> • chemical protective; <br /> • boots, chemical protective, steel toe and shank; <br /> • radiation detector(if applicable); and <br /> • communications. <br /> 3.5.2 Level B Protection <br /> Level B protection is utilized when the highest level of respiratory protection is needed but hazardous <br /> material exposure to the few unprotected areas of the body is unlikely. <br /> The following conditions suggest a need for Level B protection: <br /> • the type and atmospheric concentration of toxic substances have been identified and they require <br /> the highest level of respiratory protection; <br /> • IDLH atmospheres where the substance or concentration in the air does not present a severe <br /> skin hazard; <br /> • the type and concentrations of toxic substances do not meet the selection criteria permitting the <br /> use of air purifying respirators; and <br /> • it is highly unlikely that the work being done will generate high concentrations of vapors, gases or <br /> particulates, or splashes of materials that will affect the skin of personnel. <br /> Personal protective equipment for Level B includes: <br /> • open circuit, pressure-demand SCBA; <br /> • chemical protective clothing: <br /> • overalls and long-sleeve jacket; or <br /> • coveralls; <br /> • gloves, inner(surgical type); gloves, outer, chemical protective; <br /> • boots, chemical protective, steel toe and shank; and <br /> • communications optional. <br /> 1/2019 Corporate Health and Safety Management Program I ROUX 15 <br />