Document RjZZzJ7K3bzE4yp4gG8jgZy4V

Barry CastlemarTs DuPont File CD-ROM Document #DP S DATE /? Type of Document - published report from journal - published report from conference - published abstract from conference - unpublished report - unpublished presentation - meeting \J- letter agenda minutes report - memo - government report - industry warning information - book excerpt - legal deposition of__________________ - notes of BC on g-rturiMCTvai i". I. ou Pont de Nemours & Company CONSTRUCTION DIVISION - AIRBORNE DUST SAMPLING Per my letter of April 5, 1968, we forwarded to you information * regarding asbestos dust health hazards as well as the policy initiated in the Construction Division to control and administer personnel air sampling of work areas involving insulation material. Please find enclosed additional information regarding the personnel * air sampling program to be initiated June 1, 1968, at all Construction Division work locations. Example A is a general outline of the dust sampling program. Example B is an outline with instructions on the operation of the Model 440-B Unico asbestos dust sampler. Example C is a sample of the statistical work sheet recording information pertaining to the sample being taken. The samples are being submitted to Dr. Morton Ccrn, Dean of the School of Occupational Health, University of Pittsburgh, for a quantitative analysis. Each sample will be analyzed for particle count below 5 micron, particle count above 5 micron and total dust count. The count will be made by phase light microscopic analysis. We will keep you advised of the results of this program which is being conducted each month in the Construction Division. 001287