Document 4vzxLX0eZLa5r5DObxQ01oy0e

:-3t>332O0 CAMBRIDGE PLAINTIFF'S EXHIBIT^ TO: Per Distribution List FROM: Peter Kostic CC: DATE: March 24, 1972 SUBJECT: Asbestos Exposures Emergency Regulations The Occupational Safety and Health Administration recently issued an emergency standard for exposure to asbestos dust. It calls for the reduction in maximum permissable quantities in the workplace air from 12 fibers to 5 fibers per milliliter, and for implementation of the following additional safeguards: a. All hand or power-operated tools which produce asbestos dust such as, but not limited to, saws, scorers, abrasive wheels and drills shall be provided with local exhaust ventilation and dust collectors. b. Asbestos cement, mortar, coatings, grout and plaster shall be mixed in closed bags or other containers. c. Asbestos waste and scrap shall be collected and disposed of in sealed bags or other containers. d. All cleanup of asbestos dust and blowing shall be performed by vacuum cleaners. No dry sweeping shall be performed. Immediate action should be taken to implement these safeguards. PK:mh Peter Kostic 1516U3