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' - r <br /> LEVEL "B" PROTECTION <br /> Should be used when: Limiting Criteria <br /> Equipment Protection <br /> Provided <br /> - Pressure-demand, full The same level.of - The type and - Use only when the <br /> facepiece SCBA or respiratory atmospheric concentration vapor or gases present <br /> I pressure-demand protection but <br /> less �: of substances have been are not suspected of <br /> supplied-air respirator skin protection that identified and require a containing high <br /> with SOBA. Level A. high level of respiratory concentrations of <br /> protection, but less skin chemicals that are <br /> It is the minimum protection. This involves harmful to skin or <br /> - Chemical-resistant level recommended atmospheres: capable of being <br /> clothing (overalls and for initial site with IDLH concentrations absorbed through the <br /> i <br /> long-sleevedjacket; entries until the of specificecifc substances that intact skin. <br /> , <br /> hooded, one- or two- hazards have been do not represent a severe <br /> piece chemical splash further identified. skin hazard; - Use only when it is <br /> suit; disposal chemical- or highly unlikely that <br /> resistant one-piece suit). that do not meet the the work being done <br /> criteria for use of air- <br /> iwill generate either <br /> purifying respirators. high concentrations of <br /> -Inner and outer vapors, gases, or <br /> chemical-resistant gloves - Atmosphere contains particulates or <br /> less than 19.5 percent splashes of material <br /> - Hard hat. oxygen. that will affect <br /> exposed skin. <br /> a <br /> -Two-way <br /> radio <br /> -Presence of <br /> communications. incompletely identified <br /> vapors or gases is <br /> OPTIONAL: indicated by direct- <br /> ' reading organic vapor <br /> detection instrument, but <br /> - Coveralls. vapors and gases are not <br /> suspected of containing <br /> - Disposable boot covers. high levels of chemicals <br /> harmful to skin or capable <br /> - Face shield. of being absorbed through <br /> the intact skin: <br /> - <br /> Long cotton underwear. <br /> E <br /> 9 <br />