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B. Bump hats should not be confused with hard hats. Bump hats should only be worn in limited headroom areas and do not afford any protection Threshold Limit Values for Noise from falling objects. C. Metal hard hats should not be worn where energized electrical objects Duration per Day Sound Level could come contact with the hat. Hours dBA+ D. Hard hats must adjusted to the wearer's head size in order to afford 16 80 maximum 8 85 protection. 4 90 4. Hands 2 95 A. Match the protection to the hazard or risk. 1 100 B. There are many types of glove materials for use with hazardous '/z 105 chemicals. Y. 110 C. Metal mesh gloves should be considered when an activity includes the 1/8 115 use offhand-held sharp instruments or knives. 5. Respiratory Protection. B. The maximum allowable continuous or intermittent noise exposure is 115 A. Dust masks should be worn when the atmosphere contains nuisance dB. dusts or particles. C. Impulsive or impact noise over 115 dB should be limited to the number of B. Half-mask or full face mask respirators with appropriate cartridges can be impulses or impact or impacts shown below. No exposures in appropriate worn when vapors from acids or organics are present at less than 1 ear protection. percent of the atmosphere and oxygen concentration is at least 19.5 percent. However,be aware that it is difficult to determine when the Threshold Limit Values Impulsive or Impact Noise cartridge is"spent"and therefore no longer useful. C. A self-contained breathing apparatus should be worn in immediately Sound Level Permitted Number of Impulses dangerous to life or health atmosphere such as when the oxygen or concentration is less than 19.5 percent or organic and acid vapors exceed dB Impacts per day 1 percent of the atmosphere. 140 100 6. Feet 130 1,000 A. Open-toed shoes or sandals should not be worn when chemicals are 120 10,000 being used or there is a possibility of objects falling to the floor. B. Steel(or equivalent)toe guards should be worn during activities where energies of greater than 20 foot-pounds(i.e.,5 pounds falling from a Below is a list of PPE. This list is to serve as an example height of 4 feet)can be generated on a routine basis. as it not a complete list of PPE.You should review the task in advance, C. In activities where extremely heavy objects are involved,shin guards and when possible,alert your supervisor to the PPE needed to perform should be worn in addition to the toe guards. the task. 7. Body (1). Safety glasses:Prescription and nonprescription. A. Chemically resistant coveralls or laboratory coats should be worn when (2). Goggles:Tinted to specific needs.(See chart below) working with hazardous liquid materials. B. Laboratory coats or coveralls exposed to chemicals should not be taken Type Metal Thickness Shade home and washed in your family's clothing. C. When working at hazardous waste sites,the protection must match the Gas Welding 1/8"to 1%" 5-6 site classification. Gas Welding over 6-8 8. Ears Shield Metal Arc Welding 1/16'to 5/32" 10 A. When sound levels exceed 85 decibels(dB)over an 8-hour time period, Gas Shielding Arc Welding 1/16'to 5/32" 11 ear plugs or muffs should not be worn. The chart below presents the (nonferrous) maximum time for various sound levels that one can be exposed to before Gas Shielding Arc Welding 1/16"to 5/32' 12 muffs or plugs are required. (ferrous)