Document Evm5yavvL4VYV3kKrZQL8dJ2N

I. du Pont dc Ncmours & Company chambers WORKS CONSTRUCTION tNOiNccniNo ocpamtmcnt In reply please ut* subject <itt*d below. D*te: Noveaber i5, 1966 To: J. L. RICHMOND WORKS MANAGER CHAMBERS WORKS ATTENTION: WAYHE MJRPKY From: Subject: L. V. THATCHER / SAFETY ENGINES* " ASBESTOS 1) Lise of Construction Insulators attached. 2) We occasionally use soaa aachanlcs from other crafts (Carpenters, etc.) If necessary, we could go bach over else sheets to get the naans; however, this would be laborious. 3) "Unlbeatos," "Thermasll," and "Fibreglass Wool" are among our most common Insulating materials. 4) We spray some insulation; the usual respirator and ventilation devices arc employed when we do this work. 5) Special safety measures include a .special room for all power driven cutting machines. The atmosphere la exhausted by a Torlt Cyclone Collector. Air analysis reveals we are well belov the present established threshold safety limits of concentration. It Is vorthy eo note ehat preeeleally all mechanics get some exposure to asbestos during field work. There is constant handling, cutting, and installation going on eo varying degrees. \ LVT: kmt TdotSJdanR" EXHIBIT DUP 0900727 120583 SC-DP-01575