Document KGjNgvZxrEJxzg6L4rzx6V7aw

lM TO M. M. Galbraith interoffice correspondence date February 27, 1976 cc W. M. Blackwell C. M. Clifton M. DesMaraia C. R. Eastman L. Levin PLAINTIFF'S EXHIBIT MBL-207 AS3SST0S EXPOSURES CHEMICAL COATING PLANT EDISON, NEVf JERSEY As you requested, aa air sample was taken by Mike DesMaraia on February 9, 1976, during a typical asbestos loading operation. The air sample was taken for approximately five (5) minutes, with an open-face AA Millipore type filter. The sscaling rate was approximately two liters per minute. During the operation, the employee loaded 275 pounds of PE-718 and 137k pounds of PE-720. The mixer was set at low speed. Local exhaust ventilation was applied to the tank by means of a half cover. The ventilation appeared to be more than adequate. I ^_ ..-su^.z3 01 Survey The Millipore filter was sent to Clayton Environmental Consultants and examined according to the latest NIOSH instructions for evaluating asbestos exposures. The sample showed 0.28 fibers per milliliter of air. inis is well within the present limit of 5 fibers per milliliter of air and approximately 6o of the proposed regulation of 0.5 fibers per milli liter of air. Summary The sample showed that the asbestos exposures are not excessive, even '.thin the new proposed regulation. Eovever, we would recommend tnau ve sample at least two or three more times before we form an opinion as to whether we will be able to comply with the proposed 0.5 fiber regulation. ERArdha 06239 448008