Document QXm3p344dk9Ly13gYr2yKneNL

Inter Ollice Personnel and Organization Stall Jir. F. A. Ritchie, Manager Livonia Transmission Plant April 11, 1979 cc M. A. bouau, M.D. H. D. bryom J. K. Laetsch 0. X. llartinek b*i.jsci: Asbestos Exposure Transmission Clutch Stacking Operation Livonia Transmission Plant Au requested by Otto Martinek, Senior Safety Engineer, the Industrial hygiene Services Section performed an asbestos exposure determination at the clutch stacking operation of Department 90* This survey was performed on 1-obruury 2, 1979 and was in response to a union request for a revaluation of ti>e area following a change in the stacking mechanism. breathing zone air samples were obtained from employes who operate and supply Inc clutch stacking machine. Additionally, exposuro levels for two assembly line employes on either side of the stacking machine were also determined. tan.plto were collected to determine the 8-hour time weighted average U<.b) us well as the ceiling concentration. A bulk sample, obtained from the surface of the stacking machine was used to determine the asbestos concentration. i.i .i1t j, as shown on the attached data sheet, indicate no violation of I*i...i jsibie occupational exposure limits (PEL). However, one employe's rfi.i wuq calculated to be 0.1 fibers longer than 5 micrometers per cubic ciMin.utor of air (f/cc). Based on OSHA Program Directive #300-16 employes e>j.enured st or above 0.1 f/cc, require medical examinations. Levels ustv.7i.ii.cd m tins area at this time are similar to previous surveys of this aixu. In most cases concentrations were below the PEL but above the 0.1 f/cc level. on these results, no additional engineering modifications are necessary to reuuce employe exposure. However, to comply with the OSHA asbestos standard arm to protect employe health to the greatest extent possible, medical examii.utiun.. mu is..aired for those individuals that have exposures st or above (.1 J/cv . ii l l 1 III ,K Jit Sarunas Mingela Senior Industrial Hygienist Industrial Hygiene & Toxicology Department SCF-FORD-1714 8006 0027 PRODUCED BY FORD INDUSTRIAL HYGIENE SERVICES SECTION INDUSTRIAL HYGIENE & TOXICOLOGY DEPARTMENT EMPLOYE HEALTH SERVICES LIVONIA TRANSMISSION PLANT February 2, 1979 Department 90 Clutch Stacking Operation .i.Jli&dlpLt OCCUPATIONAL EXPOSURE LIMITS TO AIRBORNE CONTAMINANTS: ___________ 0-Hour Time Weighted Ceiling Concentration Average Exposure Limit________________ i. 2.0 fibers/cc 10 fibers/cc Nujiui>..i jx j>. i., u. v -itU-57^9 In--o', II. (5>d_-08-28^6) uav..ci.wr, n. 0i-oi4-6786) a I lyi-38-771*1*) RESULTS 8-Hour Time Weighted Average Exposure Limit 0.04 f/cc 0.1 f/cc2 Short Term Exposure Limit 1.1 f/cc3 -. .i Chrysotile Amosite 3 . . .,v .. i.vi.vi _i loss than 3000 fibers per filter -. CalculaioJ exposure level based on a minimum of lh repeated short term exposures per day ohi.j-t urn. oposure level representing the employes exposure during a 3 minute 'sy<*!. ii. wuioh he IoisHr the stacking machine . 11. in. ii. i J.n>: l.v'/ili NUMBERS: SSM-408 through SSM-hlh . . .i . ii.. trumonts: Bendix personal air sampling pumps; 37 mm membrane filters in plastic cassettes. ;_______ JLji.;. Environmental Consultants utilizing the fiber counting . .. .i wiic.se contrast microscuj'y I 8006 0028 ' PRODUCED BY FORD