Document NGmVYpZJ3m5m1Vj8vExBQ0zdy

2- - to carbon monoxide In flyniheeic p.s{ and from benzol vaporc in aolvenr. d^?voxing, to the mista asaoclatsu vltfc dram painting. Other potential expo sures are to oxide a of nitrogen, merceptnne, ouznonia, chlorine, toluol, xylol end other aromatic a, acetone, nsthyl ethyl ketone, methyl propyl icetans, methyl chloride, carbon totrachlorido, boron trifluoride, aluminum chloride, hydrogen chlorldo, oulfur trioxide, lead tetreechyl. phenol, sulfur tricride, aliphatic hydrocarbons both saturated and unsc-tureted, taper!ted lube and grease additives, vaporized and sublimed plasticizers, alcohols frees methyl to iso-octyl, ethere, esters, and others. Purses and duct3 ere encountered almost an ulcolr. There are weld ing fumes in maintenance operationo end occasional heavy urpoeuren to sil iceous catalyst dusts, coke dust free: quiraent cleaning and litharge dust in Doctor sweetening, r-sbestes d.uot in insulating operationo and talc dust in rubber mnufncture. Catalyst manufacture offern a vide variety of dust exposures, Labe ana groans rr-uufacture offer exposuree to diatoicaccouo oerth, eeveral typec of clayc, graphite, cotnl stearates, lime, aoboetos, mica, md others. Metallizing eperazione, lead burning, sand bloc tine and. pipe recon ditioning -- all present potential industrial hygiene problems. The problem of industrial cematitic is like tho poor -- always vith us. The problems vary from thocc associated vlth defatting of the chit, as would occur on intlnoce contact with certain petroleum fractions, to those ascompanying tho use of harsh ebraBivcs end detorgenta in hand, cleansers. There era plant expocuron to primary ekin Irritants, such ao the mineral e.r 1 do and alkalis, end to acre ssrlouo substances, as tho chromates. Cutting oiisgaaolina, lube, end grease additives present opportunities for contact vith primary irritants, as well as sensitizing agentc.