Document BvMB5eXr3mX2DpmY8B72KmQwj

Fic 19-43a --Above Typical safety shoes Second from left illustrates metal instep guards which fit over shoes Third from left are oxfordtype shoes Fic 19-43b --Right Shoe has built-in instep (metatarsal) protec tion This style has proven espe cially valuable m the heavy metals industries to drain off static charges, and with nonferrous construction to reduce the possibility of friction sparks m locations with a fire or ex plosion hazard Initial and subsequent peri odic tests should be made on conductive foot wear in order to make sure that the maximum allowable resistance of 450,000 ohms is not exceeded Foundry shoes Safety shoes of the "congress" or gaiter type are used in some plants where employees are exposed to splashes of molten metal Having no fasteners, such shoes are easily and rapidly removable in an emergency Some National Safety Council members en gaged in foundry and steel mill operations have reported that serious bums have oc curred to men unable to remove shoes of ordinary work type m an emergency As m all such occupations, the tops of the shoes should be covered by the trouser leg, spats, or leggings, to keep out molten metal Exptosrves-operations (nonsparking) shoes Explosives-operations shoes are used (a) in hazardous locations wheie the floors are nonconductive and giounded such as in the manu facture of certain explosive compounds, or (b) when cleaning tanks that have contained 515