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Page 12 <br /> Occupational Foot Protection (29 CFR 1910. 136) <br /> All employees and or site personal shall be required to wear <br /> safety toe footwear meeting ANSI Z41 . 1-1967 for Men 's Safety- <br /> Toe Footwear. In , general workers at hazardous waste sites <br /> must wear leather or rubber boots with steel toes and steel <br /> shanks. <br /> Personal Protective Equipment (PPE) , (29 CFR 1910) <br /> Selection of Respiratory E9ui2oggt <br /> As previously discussed , air purification respirators will be <br /> used when ambient levels of fuel constituents reach levels <br /> over 300 parts per million on a eight hour basis, and or <br /> exceed 500 parts per million in a 15 minute period. <br /> Air-purifying respirators consist of a facepiece and an air- <br /> purifying device, which is either a removable component of <br /> the facepiece or an air-purifying apparatus worn on a body <br /> harness and attached to the facepiece by a corrugated <br /> breathing hose. Air-purifying respirators selectively remove <br /> specific airborne contaminates from ambient air by <br /> filtration, absorption, adsorption, or chemical reactions. <br /> They are approved for use in atmospheres containing specific <br /> chemicals up to designated concentrations, and not for IDLH <br /> atmospheres. Air_purifying respirators have limited use at <br /> hazardous waste sites and can be used only when the ambient <br /> atmosphere contains sufficient oxygen ( 19.5%) . Selection of <br /> the proper chemical absorbent cartridge for constituents <br /> encountered at the work site is necessary for proper <br /> protection of the wearer. Additionally most chemical sorbent <br /> canisters are imprinted with an expiration date. They may be <br /> used up to that date as long as they were not opened <br /> previously. Once opened , they begin to sorb humidity and air <br /> contaminates whether or not they are in use. Their efficiency <br /> and service life 'decreases and therefore they should be used <br /> immediately. <br /> Selection of Protective Clothing and Accessories <br /> The individual components of clothing and equipment will be <br /> assembled into a full protective ensemble that both protects <br /> the worker from the site-specific hazards and minimizes the <br /> hazards and drawbacks of the PPE ensemble itself . Following <br /> are the levels of protection with recommend equipment , <br /> protection provided , when level should be used and limiting <br /> criteria. Level D and Level C are most common levels of <br /> protection required in the scope of work: anticipated , Level 9 <br /> is not anticipated but is included in following Table <br />