pressure packed, air evacuated, and heat sealed. It isthen placed in a polyethylene bag and heat sealed. Theovergarment has a shelf life of 5 years when unopened.The protective overgarment protects against allCBR agents and is permeable to water vapor. Onceremoved from its protective envelope, it has a shelf lifeof 14 days in a nonchemical environment. If it is openedbut uncontaminated, keep it for training purposes. Onceexposed to chemical contamination, the overgarmentprovides 6 hours of continuous protection, after which itshould be discarded.CHEMICAL-PROTECTIVE FOOTWEARCOVERS.—The chemical-protective footwear covers(overboots) are worn over the standard work shoe andprovide protection to the feet against exposure to allknown concentrations of nerve and blister agents. Theoverboots are made of loose-fitting, impermeable, butylsheet rubber and have a premolded, nonslip, butylrubber sole. The overboot is approximately 16 incheshigh with a grommet lace closure, including five eyeletsto allow lacing around the foot. The overboots areavailable in two sizes and can be worn on either foot.They are issued in a polyethylene bag with two pairs oflaces and an instruction sheet. Upon contamination, theoverboots provide 6 hours of protection from agentpenetration.CHEMICAL-PROTECTIVE GLOVESET.—The chemical-protective glove set is worn toprotect the hands against nerve and blister agents,liquids, and vapors. The set consists of an outer glove toprovide chemical protection and an inner glove to assistin absorption of perspiration. The five-finger outerglove is made of impermeable, unsupported, black butylrubber and is manufactured for both the right and lefthand. The thin, white cotton inner glove can be worn oneither hand. The glove set is issued in a clearpolyethylene bag with an instruction sheet.The black outer glove protects against chemicalagent vapors, aerosols, and small droplets. Uponcontamination, the set provides at least 6 hours ofprotection from agent penetration. These gloves, ingood condition, can be decontaminated and reissued.Wet-Weather ClothingWet-weather clothing (refer back to fig. 13-10) isoften described as impermeable or rubberized clothing.Its value results from the fact that the previouslydescribed impregnated/protective clothing can be13-20Student Notes:Figure 13-10.—Types of chemical-protective overgarments.
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