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cc: W. E, Neff, Film Dept., ViiV
i C. Frank Iin
R. W. We 11man
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C. R. Edwards L. R. Redman
J. L. Sparks - J.J. Young,.".
#8*271932
L. C. Bentz - File
J. B. HOWARO
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71 8l Sll0lllll2l.il S I 3TI 9-1 a J. I I I I I I I I II:
Clinton, Iowa October 19, 1972
ENGINEERING SERVICES SUPVR.
ASBESTOS DUST CONTROL
A review has been made of the requirements, procedures, and equipment needed to comply with the Occupational Safety and Health Act regarding exposure to asbestos dust. The law deals with the following major areas:
(1) Permissible concentrations of asbestos fibers (2) Methods of compliance (3) Warning signs fr labelling (4) Monitoring (5) Medical examinations (6) Record keeping
1 * Permissible concentrations of asbestos dust The limit of occupational exposure to eight hours of asbestos dust must not exceed five fibers longer than five microns per cubic centimeter. (Concentrations above five fibers but not to exceed ten fibers are permitted up to fifteen minutes/hr.)
To determine what the asbestos dust exposure is in pipe coverer's work areas, a 91-49 work order is being processed to purchase a
Bendlx C115 Personnel Monitor. This sampler is recommended by
Frank Fuller, ESO, and is available thru the Polymer Intermediates Oept. of the Company at a 10% price discount. Delivery is estimated at three weeks.
2 - Methods of compliance Reducing the creation and dispersion of asbestos dust is the best method of compliance. To achieve this reduction the following items are proposed:
A - Wearing of respirators by all maintenance personnel when working with (or in the immediate area of) asbestos insulation material. To implement this proposal, six M.S.A. Dustfoe # 77 respirators and appropriate filters are on order (November 1st del I very) .'
D - Provide a separate room, complete with a separate exhaust system, for the fabrication of asbestos insulation (see attached sketch). This "asbestos room" would contain lockers for each pipe-cover's coveralls, a Torit down-draft work bench, and new band saw ($ 700) . The lockers would be vented to the room exhaust system as would the work bench and band saw.
DUP 0903013
SC-DP-04030