Document 4akGmk5X1dqnDm3R4yOYR22Xe

Inter Office Personnel end Organisation Steff 11 March 1983 Mr. V. A. Bliss Room 132 Facilities Services Building Subjeotr Insulation Asbestos Content, Maintenance Shop, Building #4 As you requested, we evaluated employee exposure to airborne asbestos from insulation in the Maintenance Shop located in Building #4 of the Engineering and Research Center. A bulk material sample and air Bample taken were analyzed for asbestos. A review of the data indicates that the insulation contains a significant percentage of asbestos but, at the present time, concentrations of airborne asbestos are Icbb than appropriate occupational permissible exposure limits. However, it should be noted that the insulation is friable and hae the potential to continually generate airborne asbestos fibers. Therefore, we recommend that! 0 The insulation be removed and replaced with a non-asbestos material, or 0 The deteriorating portions of the insulation be vacuumed with an approved vacuum, and the remaining insulation be sealed with an encapsulating compound. Atbachwant H. B. Lick, Senior Industrial Hygienist Industrial Hygiene & Toxicology Department Employee Health Services 8006 2040 SCF-FORD-3288 PRODUCED BY FORD INDUSTRIAL HYGIENE SERVICES SECTION INDUSTRIAL HYGIENE & TOXICOLOGY DEPARTMENT EMPLOYEE HEALTH SERVICES Maintenance Shop, Building #4 Engineering and Research Center Area 9 February 1983 MSfflCtKSXHU! OCCUPATIONAL EXPOSURE LIMIT (PEL) Asbestos 8-hour PEL Short-tern limit Medical monitoring PEL in Fibers/ 00 greater than 5 microns 2.0 10.0 0.1 Bulk Material Analysis % Composition Chrysotile Asbestos h2% Mineral Wool 6j6 Inert Other Material RESULTS Maintenance Shop, General Area Air Sample Asbestos Concentration in Fibers/co 0.018 DATA RETRIEVAL NUMBER* ARA 463 INSTRUMENTATION AND ANALYSIS* SKC air sampling pump with membrane filter and phase contrast microscopy. Bulk sample NIOSH quick presumptive asbestos tost and X-Ray Diffraction. ANALYST;; L. Latorre, Senior Industrial Hygienist, and X-Ray Diffraction by ERG, Ann Arbor, Michigan FORD MOTOR COMPANY Industrie! Hygiene & Toxicology laboratory Accredited & Ceriiiud Dy; American Industrie! Hygiene Association 8006 2041 PRODUCED BY FORD