Document VjDbJYDb44MJ0Q86ZeDQNpQDj

i'ta Sheet Tri'tiuu riant AbPt > Survcv AH"- jvn Jnt Description Current TLV 1976 TLV Friction Products Building Research and Development Laboratory! (64) Disc emider - table model Personal air sample (65) Disc sander - leaded sample 12 incites from disc (46) Center o Laboratory General ara (67) Belt sander table model Personal air sample (68) Belt sander - loaded sample 9 inches from bale Asbestes Fiber oncentrat^r 5.0 2.0 23.8 31.2 0.3 0.2 0.9 * Asbestos fiber concentrations are given in fibers (greater ehan 3 microns in length) per cubic eentimeter. ***Y*<^ *01220 TF-182 /v * f* AjcJ ln<rr Company Correspondence Plant :;.r..acr Ii.cj.s. i. .1 lyjicr.u . .-I ' ' y P.*r><>:inc 1 J: .1- T-.-m. . t ... -ml _t;i.n->.o 1 ry-U r ( wltLt i* m .417.01.i During the i nrlmlfcipilliilTT' a v*> nt.ide >t cnroloyce e>.pourc tiirfc'-m-.- acbcstes fiberr in the Friction Pr-ducts nd the Cha-ilcsi buildings* The result* of the this study ere detailed .'U -Lmclc-cr.r ... Cxcc'civt orpley cnyssure tr arreitc* fiber* v*a* irund rnly in t. . ;< & b L-.Uias.ry and at P.i|-ct r*l i:i me Friction Products rui iti:*. T..C exeat. concentration of eebutt.*: -.ust at Uinel tfl "at not Tout'd to he c ncistviily excessive I'cf'ur. -o-irequent a;r.plir.p indicated ;ioer e...coi.trade:.* bel t* the current rhructeld lisit value* The by ! use of the itjM&c In ? I 1) tnaorscory. PHMBBMMHMKMbt 1 c v.cvided nr mi* o'crasic.i. I...- sender ia ret ;s he used until iaipr.v.-aciiti arc cosvletod. OSltt regulations state that i.* esplcyrc is to be cxpe.cd, i-,r *nv tine, ce asbestos fiber cenerntracion* in cversa of :u liber ncr cubic centireter unless rotpirau-ry rretecricn is warn. A fiber cnccntrsticn as l-igl. as fibers per cubic ccr.ti- nccc-r was <btaiucd -t 1 :n.:r.j level of an vaployce operating l!w- candor. L..fS^^0gB0i&n9aiMMBMaMMWtaaMiatafc! **fcn inter* nittent exposures exceeds 10 fibers p*r eubie coutiaeter. ha Ateaehaants < > fycjr'/iUtsG. E. J. Mathews Industrial Hygienist cei C. D. Eensnn ^ X. F. ktters **' D. L* Eschelbach < J* A* Lardie C. P. U.tbard * ^ M. HcCalliu * / C. A. Sactelaeier / S' bet F. A. fiumett *' i ORYtLER --W* all-state legal* TF-183