Document zznM7ZagzrQeyrQ99XqrO3VpB

i. #PU> E. I. du Pont de Nemours & Company P. 0. Box 27068 Memphis, Tennessee 38127 ENGINEERING DEPARTMENT November 28, 1966 T; D. BELL, MANAGER ELECTROCHEMICALS DEPARTMENT MEMPHIS WORKS ATTENTION: JON M. BARRON, M.D. CONSTRUCTION - MEMPHIS REPLY TO LETTER FROM C. A. D'ALCNZO. M.D.. DATED NOVEMBER 8. 1966 The following are answers to questions asked in the above referenced letter: Question A. How many full-time insulators do you have on your plant? ANSWER: Construction employs approximately 12 insulators full time. However, these are not Du Pont enployees but are . on the roll of Armstrong Contracting and Supply Corporation. Question B. How many enployees do part-time insulating? ANSWER: No part-time enployment. However, due to the nature of construction work, enployment may vary from a few days to several months. Therefore, exposure to one individual may vary proportionately. Question C. List the three most prevalent types of insulating material used. ANSWER: 1. Calcium Silicate 2. Foam Glass 3. Asbestos Fiber and Sodium Silicate Question D. Are they doing any spraying of insulating materials at your location? ANSWER: Construction is not now using any spray typ3 insulation. However, some time ago, the spraying of insulation material was initiated on a very small scale. Question E. Not applicable. Question F. List briefly any preventive measures or safety equipment required in your location when: (a) Sawing insulation material - ANSWER: All enployees use Minnesota Mining 5 Manufacturing Company Filter Mask #8500. Cb) Removing obsolete insulation? ANSWER: All enployees use cloth or rubber gloves. (c) Spraying insulating materials? ANSWER: Not being used at this site. FCB:ab BETTER THINGS FOR BETTER LIVING . . .THROUGH CHEMISTRY DUP 1 1 10075