Document emkVG0nXj69Kwkrk1gRZKeaeG

Page 2 December 9, 1966 C. A. D'Aloaxo, tf.s. Asbestos 0. Spraying of Insulating materials: Dene rarelyj practically all. alloys "Limpet," an asbestoscontaining insulating material in a vet fora while being sprayed. S. lumber of cases of the foilowing diagnoses: 1. Asbestosls 2. Mesothelioma 3. Carcinoma (among insulators) 0 0 0 F. Preventive measures or safety equipment required: 1. Saving insulating materials: All power driven cutting machines are used in a special 'room. The atmosphere is exhausted by a Torit Cyclone Collector. Air analysis for dust and asbestos.reveals levels are veil below presently established threshold safety limits of concentration fi'.e million particles/ 2. Removing obsolete insulation: lone. 3* Spraying insulating materials: This is only dose in a remote area far remo .'ed from operations. The spraying modality is infrequently employed. 3hen used, the operator wears a simple dust respirator mast and worts with the wind to his bach. All other personnel are prohibited in and around the area at the time of spraying. Although relatively simple replies have been made to your questionnaire, additional explanatory infozmat.on is in order My letter to you of August 19, 1966, spelled out the names c: employees who have vorfced as pipe-coverers, their A.S.D., and their medical classifications (or other health status). This covered the yean 1950 through 1965* Included was a list of asbestos-containing materials known to be used at this site. Dup 0900749 120591