Document nk51qaM3KXv59o9Jjj0rmvmOX

v,|. .-I- m-rd for huffing ami polbhing \ai. i i composition. Waxre. and vnrion i\j*fs of aliia*i\c.H are tin- major I'oiiiponcnts. Thrw material*. plu* Inn and fiber* from thp wheel, an: lln e?'ential ingredients of tl>c airUntie dual. The toxicity is dependent up.-n she type of abrasive. Generali); ventilation i* provided to improve hoii-cheeping and reduce the number of lonplainls and not liccausc of the hazard to health. Machining Smoke from oily parts is the pre vailing source of air contamination at machining operations. Illness has imt l**en attributed lo this type of exposure. As is the caso. with most fumes and dusts of the nuisance voriris. little is known us to what effect such materials have on existing physic al abnormalities. Ma< hining o|>crations on steel prodiuv large chips or luiningy; conMijucntly, dust is not * problem. Op eration's involving the machining of high lead alloys have been studied, and significant quantities of airborne lead have not been demonstrated. Graphite which becomes airborne during the machining of cast iron is not considered physiologically signifi cant, and therefore, is classified as a nuisance dust. Frequently manage ment considers it advisable to pro vide ventilation for the machines which arc productive of the most dust, ns graphite on the clothing and person and surrounding machinery is conducive to many complaints. Abrasive Cleaning Since silica is recognized ns the most harmful of mineral dusts, an adequate ventilation system is nor mally provided at the time of instal lation of commercially built sand blast equipment- Continuouix usage ami lack of maintenance result in a breakdown of adequate control. Visi ble escape of uust is the best evidence that this 1ms occurred and it i ad visable to correct such a condition without undue delay. Kmployees who arc stationed in blast rooms are dependent upon per sonal respiratory equipment. Devices of this type arc of the supplied-air variety, and if i* necessary that the air provided be fre: of harmful conIaminants. Air compressors should be located in an area free of contamina tion, otherwise the con:aminant will U' In nwnitted to the lu lmet. ilSThe 16,500 occupatitHKHYpjJfjr*^ toll reported in 1946 b/;the National Safety Council is in-T)jq dustry's challenge to provide :i greater safety for its empkyces. Working hand in hand with science, industry cau red ace ibis staggering figure. New scientific techniques- for checking physical fitness of employees now include jriodic hearing tests with a pure tone audiometer. Avoid accidents caused by faulty hearing in your plant. Chcckyour eraployxnftn ? hciring hcsts to/ determine ajplxaot'tifitness icr s|K cific jobs a.:id periodic tesbto detect need, for occupation re-.idjustmcnts. EQUIP you* doctor, nurio or clinic with lltc latest develop ment in scientific hearing testing --an ADC Audiometer. Opor\ olion is easy with factory\ provided in:Irodions. employees hearing regularly with Will ITS TODAY tor Uk-mort** EvU.tM D-1C0. FIRE mse DRYING MADE EAST WITH (BPi The Air CurdWeeing Hate Dryer Saves time -- urrti ifu to -- tirn'kati v ms# Ixxvs -- keeps ill kou. i* ir*ic-- !*C!B dries in n few Itoars. Maim pood Hone Uit -- provaaU n kJew ar.d ref. UStO BY MOST Cf AMERICA'S LARGEST INDUSTRIES mi vfrHiflUWs coapoaATioM 78 lt Milwariee Are. letrolt 8- MlUiyaa *alw.al Stteiy Horn*. AvOrewy. IMS