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appropriate PPE. As noted above, the site information may suggest the use of <br />combinations of PPE selected from the different protection levels (i.e., A, B, C, or D) as <br />being more suitable to the hazards of the work. It should be cautioned that the listing below <br />does not fully address the performance of the specific PPE material in relation to the <br />specific hazards at the job site, and that PPE selection, evaluation, and re -selection is an <br />ongoing process until sufficient information about the hazards and PPE performance is <br />obtained. <br />Part A: Personal Protection Equipment Categories <br />Personal protection equipment is divided into four categories based on the degree of <br />protection afforded. (See Part B of this appendix for further explanation of Levels A, B, C, <br />and D hazards): <br />I. Level A -- To be selected when the greatest level of skin, respiratory, and eye <br />protection is required. <br />The following constitute Level A equipment; it may be used as appropriate. <br />1. Positive -pressure, full face -piece, self-contained breathing apparatus <br />(SCBA), or positive pressure supplied -air respirator with escape SCBA, <br />approved by the National Institute for Occupational Safety and Health <br />(NIOSH). <br />2. Totally -encapsulating chemical -protective suit. <br />3. Coveralls. <br />4. Long underwear. <br />5. Gloves, outer, chemical -resistant. <br />6. Gloves, inner, chemical -resistant. <br />7. Boots, chemical -resistant, steel toe and shank. <br />8. Hard hat (under suit). <br />9. Disposable protective suit, gloves and boots (depending on suit construction, <br />may be worn over totally -encapsulating suit.) <br />II. Level B --The highest level of respiratory protection is necessary but a lesser level <br />of skin protection is needed. <br />The following constitute Level B equipment; it may be used as appropriate. <br />Draft HMMP <br />March, 2000 <br />